共 4 条
[2]
Hall P., 1935, J LONDON MATH SOC, V1, P26, DOI DOI 10.1112/JLMS/S1-10.37.26
[3]
KOMM H, 1948, AM J MATH, V20, P507
[4]
KREWERAS G, 1946, CR HEBD ACAD SCI, V222, P431