http://www.jstor.org.er.lib.ksu.edu/view/00368423/ap071183/07a00080/0?currentResult=00368423%2bap071183%2b07a00080%2b0%2c03&searchUrl=http%3A%2F%2Fwww.jstor.org%2Fsearch%2FAdvancedResults%3Fhp%3D25%26si%3D1%26q0%3DMarginal%2BGroups%26f0%3D%26c0%3DAND%26q1 was not bookmarked by anyone in Diigo yet.