L. Berkhout

Psychosocial health and life-events – dynamical development in the short term. A follow-up study of children at four and six years of age

J. Hoekman, S. Goorhuis‐Brouwer, L. Berkhout, 2012 .

Play and psycho-social health of boys and girls aged four to six

L. Berkhout, 2012 .

Observation instrument of play behaviour in a classroom setting

J. Hoekman, S. Goorhuis‐Brouwer, L. Berkhout, 2012 .