共 9 条
[2]
ECKER G, 1973, NUCL PHYS B, V52, P211, DOI 10.1016/0550-3213(73)90097-7
[5]
ECKER G, 1973, PI2138 BONN U PREPR
[6]
Eisenhart L. P., 1949, RIEMANNIAN GEOMETRY
[8]
KRAUSE F, 1972, PI2105 BONN U PREPR
[9]
LAM YMP, 1972, U PITTSBURGH PREPRIN