共 3 条
[1]
Dirac P.A.M., 1937, NATURE, V139, P323, DOI DOI 10.1038/139323A0
[2]
DIRAC PAM, 1938, P ROY SOC LOND A MAT, V165, P198
[3]
JORDAN P, 1947, Z NATURFORSCH A, V2, P1