@inbook{40c0c2eb2d6041459e908f4f69dbf1f2,
title = "Studying the development of children's problem behaviors using quantitative genetic techniques",
author = "{van der Valk}, {JC (Jolande)} and Frank Verhulst and DI Boomsma",
year = "1999",
language = "Undefined/Unknown",
isbn = "9023235177",
series = "chapter 8",
pages = "116--141",
editor = "H.M. Koot and A.A.M. Crijnen and R.F. Ferdinand",
booktitle = "Child psychiatric epidemiology; accomplishments and future directions",
publisher = "Koninklijke Van Gorcum BV",
address = "Netherlands",
}