Arranging n distinct numbers on a line or a circle to reach extreme total variations. - Chern-Ching Chao; Wen-Qi Liang (Eur. J. Comb., 1992)

Normal approximations of the number of records in geometrically distributed random variables. - Zhi-Dong Bai; Hsien-Kuei Hwang; Wen-Qi Liang (Random Struct. Algorithms, 1998)