共 23 条
[1]
Adler R. L., 1979, MEM AM MATH SOC, V219
[2]
BOYLE M, NOTE MINIMAL COVERS
[3]
Boyle Mike, 1983, THESIS U WASHINGTON
[5]
COVEN EM, 1977, MONATSH MATH, V83, P265
[7]
FISCHER R, 1975, C MATH SOC J BOLYAI, V16
[8]
Gantmacher, 1959, THEORY MATRICES, P125
[9]
Harrison M., 1965, INTRO SWITCHING AUTO
[10]
Hedlund GA., 1969, MATH SYST THEORY, V3, P320, DOI DOI 10.1007/BF01691062