%0 Journal Article %T A description of classroom help networks, individual network position, and their associations with academic achievement %A van Rijsewijk, Louise Gerharda Maria %A Oldenburg, Beau %A Snijders, Tom Augustinus Benedictus %A Dijkstra, Jan Kornelis %A Veenstra, René %J PLoS ONE %V 13 %N 12 %D 2018-12-19 %I Public Library of Science %~ DeepDyve