RT Journal Article SR Electronic(1) A1 Pols, WouterYR 2018 T1 De voorbereidende functie van de theorie JF Pedagogiek, VO 38 IS 3 SP 283 OP 285 DO https://doi.org/10.5117/PED2018.3.001.POLS PB Amsterdam University Press, SN 2468-1652, AB , UL https://www.aup-online.com/content/journals/10.5117/PED2018.3.001.POLS