%%Created by jPicEdt 1.4-pre5: mixed JPIC-XML/LaTeX format
%%Fri Aug 04 11:09:06 CEST 2006
%%Begin JPIC-XML
%<?xml version="1.0" standalone="yes"?>
%<jpic x-min="-2.42" x-max="222.76" y-min="7.19" y-max="82.37" auto-bounding="true">
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(41.96,51.57)"
%	 p1= "(38.39,48.07)"
%	 p2= "(38.39,51.57)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(-1.84,51.18);(-1.84,51.18);(7.37,80.39);(7.37,80.39)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(8.95,76.97);(8.95,76.97);(1.25,52.52);(1.25,52.52)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(12.89,79.08);(12.89,79.08);(19.21,52.5);(19.21,52.5)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(37.89,78.03);(37.89,78.03);(37.89,51.71);(37.89,51.71)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(42.11,78.29);(42.11,78.29);(42.11,51.45);(42.11,51.45)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(1.86,51.63)"
%	 p1= "(-1.71,48.13)"
%	 p2= "(-1.71,51.63)"
%	 />
%<circle fill-style= "none"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(41.79,81.62)"
%	 p1= "(38.22,78.12)"
%	 p2= "(38.22,81.62)"
%	 />
%<circle fill-style= "none"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(11.79,81.62)"
%	 p1= "(8.22,78.12)"
%	 p2= "(8.22,81.62)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(21.96,51.31)"
%	 p1= "(18.39,47.81)"
%	 p2= "(18.39,51.31)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(2.89,49.34);(2.89,49.34);(12.11,78.55);(12.11,78.55)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.95"
%	 left-arrow= "head"
%	 arrow-head-length-scale= "1.45"
%	 arrow-global-scale-length= "2"
%	 arrow-head-inset-scale= "0.5"
%	 arrow-head-width-linewidth-scale= "3"
%	 points= "(27.63,72.5);(27.63,72.5);(27.63,50.13);(27.63,50.13)"
%	 arrow-global-scale-width= "2"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.8"
%	 points= "(21.58,73.03);(21.58,73.03);(33.68,73.03);(33.68,73.03)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(202.09,51.44)"
%	 p1= "(198.52,47.94)"
%	 p2= "(198.52,51.44)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(68.29,51.18);(68.29,51.18);(77.5,80.39);(77.5,80.39)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(79.08,76.97);(79.08,76.97);(71.05,52.24);(71.05,52.24)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(82.76,78.82);(82.76,78.82);(89.34,52.5);(89.34,52.5)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(217.76,79.47);(217.76,79.47);(199.47,52.24);(199.47,52.24)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(220.92,77.37);(220.92,77.37);(202.63,49.47);(202.63,49.47)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(71.99,51.63)"
%	 p1= "(68.42,48.13)"
%	 p2= "(68.42,51.63)"
%	 />
%<circle fill-style= "none"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(222.05,81.49)"
%	 p1= "(218.48,77.99)"
%	 p2= "(218.48,81.49)"
%	 />
%<circle fill-style= "none"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(81.92,81.62)"
%	 p1= "(78.35,78.12)"
%	 p2= "(78.35,81.62)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(92.09,51.31)"
%	 p1= "(88.52,47.81)"
%	 p2= "(88.52,51.31)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(72.5,49.08);(72.5,49.08);(82.24,78.55);(82.24,78.55)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(102.09,51.57)"
%	 p1= "(98.52,48.07)"
%	 p2= "(98.52,51.57)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(98.03,78.03);(98.03,78.03);(98.03,51.32);(98.03,51.32)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(102.24,78.29);(102.24,78.29);(102.24,51.45);(102.24,51.45)"
%	 />
%<circle fill-style= "none"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(101.92,81.62)"
%	 p1= "(98.35,78.12)"
%	 p2= "(98.35,81.62)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(188.42,51.18);(188.42,51.18);(197.63,80.39);(197.63,80.39)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(199.21,76.97);(199.21,76.97);(191.18,52.24);(191.18,52.24)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(202.89,78.82);(202.89,78.82);(210.39,51.58);(210.39,51.58)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(192.12,51.63)"
%	 p1= "(188.55,48.13)"
%	 p2= "(188.55,51.63)"
%	 />
%<circle fill-style= "none"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(202.05,81.62)"
%	 p1= "(198.48,78.12)"
%	 p2= "(198.48,81.62)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(212.49,51.31)"
%	 p1= "(208.92,47.81)"
%	 p2= "(208.92,51.31)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(192.63,49.08);(192.63,49.08);(202.37,78.55);(202.37,78.55)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(157.76,78.29);(157.76,78.29);(148.42,50.53);(148.42,50.53)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(161.32,77.24);(161.32,77.24);(152.37,50);(152.37,50)"
%	 />
%<circle fill-style= "none"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(161.92,81.36)"
%	 p1= "(158.35,77.86)"
%	 p2= "(158.35,81.36)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(128.29,51.05);(128.29,51.05);(137.5,80.26);(137.5,80.26)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(139.08,76.84);(139.08,76.84);(131.05,52.11);(131.05,52.11)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(142.76,78.68);(142.76,78.68);(149.34,52.37);(149.34,52.37)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(131.99,51.5)"
%	 p1= "(128.42,48)"
%	 p2= "(128.42,51.5)"
%	 />
%<circle fill-style= "none"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(141.92,81.49)"
%	 p1= "(138.35,77.99)"
%	 p2= "(138.35,81.49)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(152.09,51.17)"
%	 p1= "(148.52,47.67)"
%	 p2= "(148.52,51.17)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(132.5,48.95);(132.5,48.95);(142.24,78.42);(142.24,78.42)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(117.37,40.26);(117.37,40.26);(88.95,11.84);(88.95,11.84)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(120,37.37);(120,37.37);(92.63,10);(92.63,10)"
%	 />
%<circle fill-style= "none"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(121.79,41.62)"
%	 p1= "(118.22,38.12)"
%	 p2= "(118.22,41.62)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(88.16,11.32);(88.16,11.32);(97.37,40.53);(97.37,40.53)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(98.95,37.11);(98.95,37.11);(90.92,12.37);(90.92,12.37)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(102.63,38.95);(102.63,38.95);(109.21,12.63);(109.21,12.63)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(91.86,11.76)"
%	 p1= "(88.29,8.26)"
%	 p2= "(88.29,11.76)"
%	 />
%<circle fill-style= "none"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(101.79,41.75)"
%	 p1= "(98.22,38.25)"
%	 p2= "(98.22,41.75)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(111.96,11.44)"
%	 p1= "(108.39,7.94)"
%	 p2= "(108.39,11.44)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(92.37,9.21);(92.37,9.21);(102.11,38.68);(102.11,38.68)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(151.7,11.57)"
%	 p1= "(148.13,8.07)"
%	 p2= "(148.13,11.57)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(187.76,40.66);(187.76,40.66);(149.47,12.11);(149.47,12.11)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(192.24,38.29);(192.24,38.29);(151.97,9.61);(151.97,9.61)"
%	 />
%<circle fill-style= "none"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(191.92,41.62)"
%	 p1= "(188.35,38.12)"
%	 p2= "(188.35,41.62)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(158.29,11.32);(158.29,11.32);(167.5,40.53);(167.5,40.53)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(169.08,37.11);(169.08,37.11);(161.05,12.37);(161.05,12.37)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(172.76,38.95);(172.76,38.95);(179.34,12.63);(179.34,12.63)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(161.99,11.76)"
%	 p1= "(158.42,8.26)"
%	 p2= "(158.42,11.76)"
%	 />
%<circle fill-style= "none"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(171.92,41.75)"
%	 p1= "(168.35,38.25)"
%	 p2= "(168.35,41.75)"
%	 />
%<circle fill-style= "solid"
%	 stroke-width= "0.75"
%	 closure= "plain"
%	 p3= "(182.09,11.44)"
%	 p1= "(178.52,7.94)"
%	 p2= "(178.52,11.44)"
%	 />
%<multicurve fill-style= "none"
%	 stroke-width= "0.75"
%	 points= "(162.5,9.21);(162.5,9.21);(172.24,38.68);(172.24,38.68)"
%	 />
%</jpic>
%%End JPIC-XML
%PSTricks content-type (pstricks.sty package needed)
%Add \usepackage{pstricks} in the preamble of your LaTeX file
%You can rescale the whole picture (to 80% for instance) by using the command \def\JPicScale{0.8}
\ifx\JPicScale\undefined\def\JPicScale{1}\fi
\psset{unit=\JPicScale mm}
\psset{linewidth=0.3,dotsep=1,hatchwidth=0.3,hatchsep=1.5,shadowsize=1,dimen=middle}
\psset{dotsize=0.7 2.5,dotscale=1 1,fillcolor=black}
\psset{arrowsize=1 2,arrowlength=1,arrowinset=0.25,tbarsize=0.7 5,bracketlength=0.15,rbracketlength=0.15}
\begin{pspicture}(0,0)(222.76,82.37)
\rput{0}(40.17,49.82){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\psline[linewidth=0.75](-1.84,51.18)(7.37,80.39)
\psline[linewidth=0.75](8.95,76.97)(1.25,52.52)
\psline[linewidth=0.75](12.89,79.08)(19.21,52.5)
\psline[linewidth=0.75](37.89,78.03)(37.89,51.71)
\psline[linewidth=0.75](42.11,78.29)(42.11,51.45)
\rput{0}(0.08,49.88){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\rput{0}(40,79.87){\psellipse[linewidth=0.75](0,0)(2.5,2.5)}
\rput{0}(10,79.87){\psellipse[linewidth=0.75](0,0)(2.5,2.5)}
\rput{0}(20.17,49.56){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\psline[linewidth=0.75](2.89,49.34)(12.11,78.55)
\psline[linewidth=0.95,arrowscale=2 2,arrowsize=1 3,arrowlength=1.45,arrowinset=0.5]{<-}(27.63,72.5)(27.63,50.13)
\psline[linewidth=0.8](21.58,73.03)(33.68,73.03)
\rput{0}(200.31,49.69){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\psline[linewidth=0.75](68.29,51.18)(77.5,80.39)
\psline[linewidth=0.75](79.08,76.97)(71.05,52.24)
\psline[linewidth=0.75](82.76,78.82)(89.34,52.5)
\psline[linewidth=0.75](217.76,79.47)(199.47,52.24)
\psline[linewidth=0.75](220.92,77.37)(202.63,49.47)
\rput{0}(70.21,49.88){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\rput{0}(220.26,79.74){\psellipse[linewidth=0.75](0,0)(2.5,2.5)}
\rput{0}(80.14,79.87){\psellipse[linewidth=0.75](0,0)(2.5,2.5)}
\rput{0}(90.31,49.56){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\psline[linewidth=0.75](72.5,49.08)(82.24,78.55)
\rput{0}(100.31,49.82){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\psline[linewidth=0.75](98.03,78.03)(98.03,51.32)
\psline[linewidth=0.75](102.24,78.29)(102.24,51.45)
\rput{0}(100.13,79.87){\psellipse[linewidth=0.75](0,0)(2.5,2.5)}
\psline[linewidth=0.75](188.42,51.18)(197.63,80.39)
\psline[linewidth=0.75](199.21,76.97)(191.18,52.24)
\psline[linewidth=0.75](202.89,78.82)(210.39,51.58)
\rput{0}(190.34,49.88){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\rput{0}(200.27,79.87){\psellipse[linewidth=0.75](0,0)(2.5,2.5)}
\rput{0}(210.7,49.56){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\psline[linewidth=0.75](192.63,49.08)(202.37,78.55)
\psline[linewidth=0.75](157.76,78.29)(148.42,50.53)
\psline[linewidth=0.75](161.32,77.24)(152.37,50)
\rput{0}(160.13,79.61){\psellipse[linewidth=0.75](0,0)(2.5,2.5)}
\psline[linewidth=0.75](128.29,51.05)(137.5,80.26)
\psline[linewidth=0.75](139.08,76.84)(131.05,52.11)
\psline[linewidth=0.75](142.76,78.68)(149.34,52.37)
\rput{0}(130.21,49.75){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\rput{0}(140.14,79.74){\psellipse[linewidth=0.75](0,0)(2.5,2.5)}
\rput{0}(150.31,49.42){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\psline[linewidth=0.75](132.5,48.95)(142.24,78.42)
\psline[linewidth=0.75](117.37,40.26)(88.95,11.84)
\psline[linewidth=0.75](120,37.37)(92.63,10)
\rput{0}(120,39.87){\psellipse[linewidth=0.75](0,0)(2.5,2.5)}
\psline[linewidth=0.75](88.16,11.32)(97.37,40.53)
\psline[linewidth=0.75](98.95,37.11)(90.92,12.37)
\psline[linewidth=0.75](102.63,38.95)(109.21,12.63)
\rput{0}(90.08,10.01){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\rput{0}(100.01,40){\psellipse[linewidth=0.75](0,0)(2.5,2.5)}
\rput{0}(110.18,9.69){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\psline[linewidth=0.75](92.37,9.21)(102.11,38.68)
\rput{0}(149.91,9.82){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\psline[linewidth=0.75](187.76,40.66)(149.47,12.11)
\psline[linewidth=0.75](192.24,38.29)(151.97,9.61)
\rput{0}(190.13,39.87){\psellipse[linewidth=0.75](0,0)(2.5,2.5)}
\psline[linewidth=0.75](158.29,11.32)(167.5,40.53)
\psline[linewidth=0.75](169.08,37.11)(161.05,12.37)
\psline[linewidth=0.75](172.76,38.95)(179.34,12.63)
\rput{0}(160.21,10.01){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\rput{0}(170.14,40){\psellipse[linewidth=0.75](0,0)(2.5,2.5)}
\rput{0}(180.31,9.69){\psellipse[linewidth=0.75,fillstyle=solid](0,0)(2.5,2.5)}
\psline[linewidth=0.75](162.5,9.21)(172.24,38.68)
\end{pspicture}