Distel, M. A., Vink, J. M., Willemsen, G., Middeldorp, C. M., Merckelbach, H. L. G. J., & Boomsma, D. I. (2007). Heritability of Self-reported Phobic Fear. Springer US.

Distel, Marijn A., Jacqueline M. Vink, Gonneke Willemsen, Christel M. Middeldorp, Harald L. G. J. Merckelbach, and Dorret I. Boomsma. Heritability of Self-reported Phobic Fear. Springer US, 2007.

Distel, Marijn A., et al. Heritability of Self-reported Phobic Fear. Springer US, 2007.