- document
- Chen, L. (author), Huang, X. (author), Kelder, E. (author), Schoonman, J. (author) journal article 1995
- document
- Chen, C.H. (author), Buysman, A.A.J. (author), Kelder, E.M. (author), Schoonman, J. (author) journal article 1995
- document
- Chen, L. (author), Van Zomeren, A. (author), Schoonman, J. (author) journal article 1994
- document
- Chen, L. (author), Schoonman, J. (author) journal article 1993