共 6 条
[2]
HILLE E, 1957, AM MATH SOC COLLOQ P, V31
[3]
Kato T, 1964, P S APPL MATH, V17, P50
[4]
KELLER JB, 1968, LECTURE NOTES
[5]
Vasileva A., 1963, USP MAT NAUK, V18, P15
[6]
Vasileva A., 1963, RUSS MATH SURV, V18, P13, DOI [10.1070/RM1963v018n03ABEH001137, DOI 10.1070/RM1963V018N03ABEH001137]