A new approach to evaluate the market share of service industries. - Couchen Wu; Sung-May Hsu; Tsu-Wu Tien (J. Oper. Res. Soc., 1998)

Counting your customers: Compounding customer's in-store decisions, interpurchase time and repurchasing behavior. - Couchen Wu; Hsiu-Li Chen (Eur. J. Oper. Res., 2000)