共 12 条
[1]
GOECKE DM, 1979, THESIS U OKLAHOMA NO
[4]
INNES JE, 1975, 1974 P U SO CAL LOS, P385
[8]
LIN ZC, 1985, ANN DIFF EQNS, V1, P189
[9]
TYCHONOV AN, 1952, MATH USSR SB, V31, P574
[10]
ZHAO W, 1990, J DIFFER EQUATIONS, V88, P265, DOI DOI 10.1016/0022-0396(90)90099-B