共 13 条
[1]
ANTOSIEWICZ HA, 1966, ANN MAT PUR APPL, V74, P61
[2]
Coddington E. A., 1955, THEORY ORDINARY DIFF
[7]
MILLER RK, 1973, P PARK CITY S DIFFER
[8]
Nohel J. A., 1973, ANN MAT PUR APPL, V96, P339
[9]
NOHEL JA, 1971, ANN MAT PUR APPL, V90, P149
[10]
NOHEL JA, 1971, LECT NOT MATH, P40