Authors: Chen, GH Yip, WK Mo, HK Liu, Y

Citation: Gh. Chen et al., Effect of sludge fasting/feasting on growth of activated sludge cultures, WATER RES, 35(4), 2001, pp. 1029-1037

Authors: Chen, GH Mo, HK Saby, S Yip, WK Liu, Y

Citation: Gh. Chen et al., Minimization of activated sludge production by chemicallly stimulated energy spilling, WATER SCI T, 42(12), 2000, pp. 189-200

Authors: Tan, TH Yip, WK

Citation: Th. Tan et Wk. Yip, Behavior of axially loaded concrete columns confined by elliptical hoops, ACI STRUC J, 96(6), 1999, pp. 967-971