共 5 条
[1]
BELNA C, 1982, MICH MATH J, V29, P79
[2]
Eggleston H. G., 1958, CONVEXITY
[4]
HAYMAN WK, 1981, COMMENT MATH HELV, V53, P366
[5]
Jorgensen V., 1956, B SCI MATH, V4, P113, DOI [10.7146/math.scand.a-10460, DOI 10.7146/MATH.SCAND.A-10460]