00402nam a2200133Ia 4500003000400000008004100004020001500045040000800060100001600068245006100084260004300145300001400188440006600202LDD181029s9999 xx 000 0 und d a080532397x cLDD aDoniach, S. 0aGreen's functions for solid state physicistscS. Doniach aMassachusettsbBenjamin/Cummingsc1974 axix, 266p aFrontiers in physics: a lecture note and reprint seriesv v.4