TY - JOUR AU - Leah Wrenn Berman AU - William H. Mitchell TI - Sparse line deletion constructions for symmetric 4-configurations JO - Ars mathematica contemporanea PY - 2015 SP - 165 EP - 186 VL - 9 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.478.bc1/ DO - 10.26493/1855-3974.478.bc1 LA - en ID - 10_26493_1855_3974_478_bc1 ER -