@BOOK{ Book!D - 90250853,
AUTHOR = " editors, N. Berkovits [and others].",
TITLE = "Strings & symmetries, 1991 :",
LIBRARY= "مرکز و کتابخانه مطالعات اسلامی به زبان‌های اروپایی",
SUBJECT = "Supergravity, Congresses.,Superstring theories, Congresses.,Supersymmetry, Congresses.,Supergravity.,Superstring theories.,Supersymmetry.",
URL = "/book/90250853/Strings-symmetries-1991/"}