TY - BOOK AU - Koekoek, Jeroen. AU - Koekoek, Jeroen. AU - Knoppers, Annelies. TI - Gender categorizations during group work in physical education / U1 - DPer 796.07 J826 July-October 2019 January-April 2020 v. 38, 39 n. 3-4, 1-2 PY - 2020/// CY - Champaign, Illinois PB - Human Kinetics, Inc. KW - Collaborative work KW - Social constructivism KW - Friendships N1 - Journal of Teaching in Physical Education, vol. 39, no. 2, pages 196-205, April 2020 ER -