@article{MZ_1971__120_171525, author = {Arunas Rudvalis}, title = {(v, k, {...)-Graphs} and {Polarities} of (v, k, {...)-Designs.}}, journal = {Mathematische Zeitschrift}, pages = {224--230}, publisher = {mathdoc}, volume = {120}, year = {1971}, zbl = {0202.51201}, url = {http://geodesic.mathdoc.fr/item/MZ_1971__120_171525/} }