共 4 条
[1]
Ramm A. G., 1972, Radio Engineering and Electronic Physics, V17, P1034
[2]
RAMM AG, 1984, J MATH ANAL APPL
[3]
RAMM AG, 1968, MATH IZVESTIJA VUZOV, V11, P131
[4]
RAMM AG, 1981, MATH METHOD APPL SCI, V3, P336