共 33 条
[1]
Alexandrov A.D., 1938, MAT SBORNIK, V3, P27
[2]
Alexandrov A.D., 1937, MAT SBORNIK, V2, P1205
[3]
[Anonymous], 1983, GRUNDLEHREN
[4]
Berg C, 1969, SELSKAB MATH FYS MED, V37, P1
[5]
Burago Y. D., 1988, Geometric Inequalities
[9]
Christoffel, 1865, J REINE ANGEW MATH, V64, P193
[10]
FEDOTOV VP, 1979, MAT ZAMETKI, V26, P269