00301nam a2200109Ia 4500008004100000020001800041082001700059100002100076245004800097260003400145300001200179191014s9999    xx            000 0 und d  a0-201-52253-5  a537.623bFRA  aEduardo Fradkin  0aField Theories of Condensed Matter Systems   aParkwaybAddison Wesleyc1991  aXvi,350