共 8 条
[1]
Dahiya R. S., 1973, Journal of Mathematical and Physical Sciences, V7, P163
[2]
ELBERT A, 1968, ANN U SCI BUDAPEST E, V12, P107
[3]
ELIASON SB, 1970, J LONDON MATH SOC, V2, P461
[4]
ELIASON SB, 1971, QUART APPL MATH, V35, P148
[5]
MYSKIS AD, 1951, LINEAR DIFFERENTIAL
[6]
Norkin S.B., 1972, DIFFERENTIAL EQUATIO, V31
[7]
Schmitt K., 1971, ROCKY MT J MATH, V1, P459
[8]
STMARY DF, 1969, J DIFFER EQUATIONS, V5, P314