共 6 条
[2]
CECH E, 1933, FUNDAMENTA MATH, V20, P232
[3]
LOBREGT S, 1980, IEEE T PATTERN ANAL, P75
[4]
MORGENTHALER DG, 1980, TR980 U MAR COMP VIS
[6]
WILDER RL, 1949, AM MATH SOC C PUBL, V32, pCH2