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doi.org/10.1111/1469-7610.00128, hdl.handle.net/1765/67287
Journal of Child Psychology and Psychiatry
Pediatric Psychiatry

van Lier, P., Verhulst, F., van der Ende, J., & Crijnen, A. (2003). Classes of disruptive behaviour in a sample of young elementary school children. Journal of Child Psychology and Psychiatry, 44(3), 377–387. doi:10.1111/1469-7610.00128