共 3 条
[1]
FRISCH R, 1926, VIDENSKAPSAKADEMI HF
[2]
JORDAN, 1927, STAT MATH
[3]
Sheppard W.F., 1898, P LOND MATH SOC, V29, P353, DOI [DOI 10.1112/PLMS/S1-29.1.353, 10.1112/plms/s1-29.1.353]