共 13 条
[1]
Doeblin W., 1940, STUD MATH, V9, P71, DOI [10.4064/sm-9-1-71-96, DOI 10.4064/SM-9-1-71-96]
[2]
FELLER W, 1967, 5TH P BERK S MATH 1, V2, P373