By de Laat M.   Lally V.   in Instructional Science

ISSN:0020-4277|31|1-2|7-39

Springer Publishing Company ‎(2003)‎

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By van Dijk C. C.   Franx A.   de Laat M. W. M.   Bruinse H. W.   Visser G. H. A.   Nikkels P. G. J.   in Journal of Maternal-Fetal and Neonatal Medicine

ISSN:1476-4954|11|4|280-283

Informa Healthcare‎(2002)‎

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