共 9 条
[2]
Calderon A. P., 1951, RIV MAT U PARMA, V2, P203
[3]
FEDERER H, 1969, GRUNDLEHREN MAT WISS, V153
[4]
GAGLIARDO E, 1958, RIC MAT, V7, P102
[6]
Morrey C. B., 1966, GRUNDLEHREN MATH WIS, V130
[7]
Morrey C. B., 1940, DUKE MATH J, V6, P187
[8]
Reichelderfer P.V, 1955, GRUNDLEHREN MATH WIS, VLXXV
[9]
SERRIN J., 1961, T AM MATH SOC, V101, P139, DOI DOI 10.1090/S0002-9947-1961-0138018-9