@article{GDZPPN002317958, title = {A Note on Extreme Positive Definite Matrices.}, journal = {Mathematische Annalen}, volume = {243}, year = {1979}, pages = {65-68}, zbl = {0396.15011}, url = {http://dml.mathdoc.fr/item/GDZPPN002317958} }
Christensen, Jens Peter Reuss; Vesterstrom, J. A Note on Extreme Positive Definite Matrices.. Mathematische Annalen, Tome 243 (1979) pp. 65-68. http://gdmltest.u-ga.fr/item/GDZPPN002317958/