Li, Wei (2010) Contact. In: Jaspers, J. and Östman, J.O. and Verschueren, J. (eds.) Society and Language Use. Handbook of Pragmatics Highlights 7. Amsterdam, Netherlands: Benjamins, pp. 127-139. ISBN 9789027207845.

Li, Wei (2008) Contact. In: Östman, J.O. and Verschueren, J. (eds.) Handbook of Pragmatics. Amsterdam, Netherlands: John Benjamins. ISBN 9789027232571.