@article{COMIM_2020__28_3_a0, author = {Schleischitz, Johannes}, title = {On a question of {Schmidt} and {Summerer} concerning $3$-systems}, journal = {Communications in Mathematics}, pages = {253--262}, publisher = {mathdoc}, volume = {28}, number = {3}, year = {2020}, mrnumber = {4197077}, zbl = {1475.11131}, language = {en}, url = {http://geodesic.mathdoc.fr/item/COMIM_2020__28_3_a0/} }