Colliot-Thélène, Jean-LouisOjanguren, ManuelParimala, Raman2008-12-162008-12-162008-12-162002https://infoscience.epfl.ch/handle/20.500.14299/32833division algebrasunramifiedisotropic quadratic formsQuadratic forms over fraction fields of two-dimensional Henselian rings and Brauer groups of related schemestext::book/monograph::book part or chapter