共 7 条
- [1] BEAMS JW, 1971, PHYS TODAY MAY, P35
- [3] DIRAC PAM, 1973, PONT ACAD COMMENTARI, V11, P46
- [5] On the possibility of a world with constantly negative curvature of space [J]. ZEITSCHRIFT FUR PHYSIK, 1924, 21 : 326 - 332
- [6] MILNE EA, 1937, KINEMATIC RELATIVITY
- [7] SHAPIRO II, 1968, SCI AM, V219, P32