Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{CMH_1985__60_140014, author = {D.R. Estes and J. Hurrelbrink and R. Perlis}, title = {Total positivity and algebraic {Witt} classes.}, journal = {Commentarii mathematici Helvetici}, pages = {284--290}, publisher = {mathdoc}, volume = {60}, year = {1985}, zbl = {0589.10021}, url = {http://geodesic.mathdoc.fr/item/CMH_1985__60_140014/} }
D.R. Estes; J. Hurrelbrink; R. Perlis. Total positivity and algebraic Witt classes.. Commentarii mathematici Helvetici, Tome 60 (1985), pp. 284-290. http://geodesic.mathdoc.fr/item/CMH_1985__60_140014/