共 15 条
[3]
BOREVICH Z, ANN MAT PURA APPL, V17, P127
[4]
FLANDERS H, 1963, DIFFERNETIAL FORMS A
[6]
JOHNSON J, 1969, AM J MATH, V61, P239
[8]
LANG S, 1966, INTRODUCTION TRANSCE
[9]
MUMFORD D, 1967, INTRODUCTION ALGEBRA