共 9 条
[4]
Falconer K, 1977, B LOND MATH SOC, V9, P313
[6]
Krasnosel'skii MA, 1946, REC MATH, V19, P309
[7]
Nadler S.B., 1978, HYPERSPACES SETS
[9]
Valentine F. A., 1964, CONVEX SETS