Modeling distributed hybrid systems in Ptolemy II. - He Li 001; Xiaojun Liu 001; Edward A. Lee (ACC, 2001)

The Ptolemy II Framework for Visual Languages. - Xiaojun Liu 001; Yuhong Xiong; Edward A. Lee (HCC, 2001)

Taming heterogeneity - the Ptolemy approach. - Johan Eker; Jörn W. Janneck; Edward A. Lee; Jie Liu 001; Xiaojun Liu 001; Jozsef Ludvig; Stephen Neuendorffer; Sonia R. Sachs; Yuhong Xiong (Proc. IEEE, 2003)

Modeling of sensor nets in Ptolemy II. - Philip Baldwin; Sanjeev Kohli; Edward A. Lee; Xiaojun Liu 001; Yang Zhao 020 (IPSN, 2004)

Actor-oriented control system design: a responsible framework perspective. - Jie Liu 001; Johan Eker; Jörn W. Janneck; Xiaojun Liu 001; Edward A. Lee (IEEE Trans. Control. Syst. Technol., 2004)

The design and application of structured types in Ptolemy II. - Yuhong Xiong; Edward A. Lee; Xiaojun Liu 001; Yang Zhao 020; Lizhi C. Zhong (GrC, 2005)

Modeling Timed Concurrent Systems. - Xiaojun Liu 001; Eleftherios Matsikoudis; Edward A. Lee (CONCUR, 2006)

CPO semantics of timed interactive actor networks. - Xiaojun Liu 001; Edward A. Lee (Theor. Comput. Sci., 2008)

Classes and inheritance in actor-oriented design. - Edward A. Lee; Xiaojun Liu 001; Stephen Neuendorffer (ACM Trans. Embed. Comput. Syst., 2009)