共 10 条
- [1] AMES WF, 1967, NONLINEAR PARTIAL DI, V1
- [2] AMES WF, 1972, NONLINEAR PARTIAL DI, V2
- [3] Eisenhart L. P, 1909, TREATISE DIFFERENTIA
- [4] FRIEDLANDER FG, 1947, P CAMB PHILOS SOC, V43, P360
- [5] KOBAYASHI S, 1969, F DIFFERENTIAL GEOME, V2
- [6] NEWMAN ET, 1975, MAR C OCC 60TH BIRTH
- [7] NEWMAN ET, 1974, 7TH INT C GRAV REL T
- [8] PENROSE R, 1975, MAR C OCC 60TH BIRTH
- [9] SOMMERVILLE DMY, 1959, ANALYTICAL GEOMETRY