Voir la notice de l'article provenant de la source Annales Mathematica et Informaticae website
@article{AMI_2005_32_a8, author = {D\'enes Petz}, title = {Means of positive matrices: {Geometry} and a conjecture}, journal = {Annales mathematicae et informaticae}, pages = {129--139}, publisher = {mathdoc}, volume = {32}, year = {2005}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AMI_2005_32_a8/} }
Dénes Petz. Means of positive matrices: Geometry and a conjecture. Annales mathematicae et informaticae, Tome 32 (2005), pp. 129-139. http://geodesic.mathdoc.fr/item/AMI_2005_32_a8/