共 23 条
[1]
ALEXANDROW AD, 1957, BEGRIFF RAUMES GEOME
[2]
ALEXANDROW AD, 1955, INNERE GEOMETRIE KON
[3]
BERGER M, 1962, ILLINOIS J MATH, V6, P700
[4]
Busemann H., 1955, GEOMETRY GEODESICS
[7]
GROMOLL D, TO BE PUBLISHED
[8]
Gromoll D., 1968, RIEMANNSCHE GEOMETRI