TY - JOUR AU - Tim Penttila AU - Alessandro Siciliano TI - On the incidence maps of incidence structures JO - Ars Mathematica Contemporanea PY - 2021 SP - 51 EP - 68 VL - 20 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.1996.db7/ DO - 10.26493/1855-3974.1996.db7 LA - en ID - 10_26493_1855_3974_1996_db7 ER -