@book{ Solr-476859, title = {Tame algebras and integral quadratic forms Claus Michael Ringel.}, series = {Lecture notes in mathematics (Springer-Verlag) ;}, author = {Ringel, Claus Michael}, address = {Berlin ; New York}, publisher = {Springer-Verlag}, year = {1984}, pages = {376}, url = {https://doi.org/10.1007/BFb0072870} }