A goal oriented office form system. - Heyun Liu; Ian Dranffan; Frank Poole (COOCS, 1991)

An intelligent form system. - Heyun Liu (1992)

An Intention MAintenance Mechanism. - Heyun Liu; Kehong Wang; Chunyi Shi; Wang Dingxin (SCAI, 1995)

Intention maintenance as conflict resolution upon a means-network. - Heyun Liu; Kehong Wang; Chunyi Shi; Dingxing Wang (J. Comput. Sci. Technol., 1995)

Study on the expert system of overhead lines icing and icing melting. - Heyun Liu; Wenbin Tang; Xiaohui Ma; Xiaosong Gu (ISKE, 2008)