共 6 条
[1]
Frame J. S., 1941, B AM MATH SOC, V47, P458
[3]
Frobenius G, 1906, SITZBER K PREUSS AKA, P186
[4]
Mackey G. W., 1951, AM J MATH, V73, P576, DOI [10.2307/2372309, DOI 10.2307/2372309]