@book{ BA12621676, author = "Yen, Shih-chien and 楊, 重駿 and Wang, Chia-kang", title = "Probability theory and its applications in China", publisher = "American Mathematical Society", year = "1991", series = "Contemporary mathematics", number = "118", URL = "https://ci.nii.ac.jp/ncid/BA12621676" }