共 7 条
[1]
KANNAN R, 1968, BULL CALCUTTA MATH S, V60, P71
[2]
Luxemburg WAJ, 1958, INDAG MATH, V20, P540
[3]
SOME REMARKS CONCERNING CONTRACTION MAPPINGS
[J].
CANADIAN MATHEMATICAL BULLETIN,
1971, 14 (01)
:121-&
[4]
Rus I. A., 1971, REND I MAT U TRIESTE, V3, P169
[5]
SINGH SP, 1970, B MATH SOC SCI MATH, V14, P87
[6]
TIBERIOBIANCHIN.RM, 1972, B UNIONE MAT ITAL, V5, P103
[7]
ZAMFIRESCU T, TO BE PUBLISHED