@article{10_4064_cm_49_2_143_160, author = {L. Szczepanik}, title = {Quadratic form schemes with non-trivial radical}, journal = {Colloquium Mathematicum}, pages = {143--160}, publisher = {mathdoc}, volume = {49}, number = {2}, year = {1984}, doi = {10.4064/cm-49-2-143-160}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-49-2-143-160/} }