M.-L. Kaldoja, A. Mäeots, M. Tolli, and H. Saareoja, “Suitability of the Estonian adaption of the Ages and Stages Questionnaires: Social-Emotional 2nd Ed (ASQ:SE-2) 36 Month Questionnaire to assess social-emotional behaviour in 3-year-old Estonian children”, EHA, vol. 9, no. 1, pp. 162–185, May 2021.