共 9 条
[1]
Avann S. P., 1961, P AM MATH SOC, V12, P407, DOI [10.2307/2034206, DOI 10.2307/2034206]
[4]
BARTHELEMY JP, 1982, ORDERED SETS, P721
[6]
Hodson F., 1971, MATH ARCHAEOLOGICAL, P387
[9]
[No title captured]