TY - JOUR AU - Andreas Poulos TI - A case study of a student who created problems for a mathematics competition JO - The Teaching of Mathematics PY - 2020 SP - 109 VL - XXIII IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM2_2020_XXIII_2_a3/ LA - en ID - TM2_2020_XXIII_2_a3 ER -