@book{15849, author = {Pfister, Albrecht}, title = {Quadratic forms with applications to algebraic geometry and topology /}, publisher = {Cambridge University,}, year = {1995.}, series = {London Mathematical Society lecture note series ;}, address = {Cambridge ;}, note = {Colección CONICET.}, url = {http://www.loc.gov/catdir/description/cam027/95013802.html} }