TY - JOUR AU - Peter Keevash TI - Counting designs JO - Journal of the European Mathematical Society PY - 2018 SP - 903 EP - 927 VL - 20 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4171/jems/779/ DO - 10.4171/jems/779 ID - JEMS_2018_20_4_a2 ER -