@article{M2AN_1971__5_3_127_0, author = {Tartar, Luc}, title = {Br\`eve communication. {Une} nouvelle caract\'erisation des $M$ matrices}, journal = {Revue fran\c{c}aise d'informatique et de recherche op\'erationnelle. S\'erie rouge}, pages = {127--128}, publisher = {Dunod}, address = {Paris}, volume = {5}, number = {R3}, year = {1971}, mrnumber = {308157}, zbl = {0268.15002}, language = {fr}, url = {http://archive.numdam.org/item/M2AN_1971__5_3_127_0/} }