共 14 条
[1]
ELVIUS T, 1974, THESIS U UPPSALA
[2]
HERSH R, 1963, J MATH MECH, V12, P317
[4]
KREISS HO, TO BE PUBLISHED
[6]
MAJDA AJ, 1975, COMMUN PUR APPL MATH, V28, P49
[7]
Miyatake S., 1973, J MATH KYOTO U, V13, P435
[8]
NIRENBERG L, LECTURES LINEAR P 17