共 3 条
[1]
Hadamard J., 1893, B SCI MATH, V17, P240
[2]
Paley REAC., 1933, J MATH PHYS, V12, P311, DOI 10.1002/sapm1933121311
[3]
Williamson J., 1944, DUKE MATH J, V11, P65