共 13 条
[1]
GELFAND IM, 1964, VERALLG FUNKTIONEN, V4, P51
[2]
GOLDEN S, 1965, PHYS REV, V137, P1127
[3]
HERTEL P, CERN133871 PREPR
[4]
HERTEL P, CERN133071 PREPR
[5]
HILLE E, 1957, AM MATH SOC COLLOQ P, V31
[6]
Kato T., 1966, PERTURBATION THEORY, V132
[7]
KYFAN, 1949, P NATL ACAD SCI USA, V35, P652