@article{PSMIR_1974___S4_A1_0,
     author = {Brezzi, F.},
     title = {On the {Existence,} {Uniqueness} and {Approximation} of {Saddle-Point} {Problems} {Arising} from {Lagrangian} {Multipliers}},
     journal = {Publications des s\'eminaires de math\'ematiques et informatique de Rennes},
     eid = {1},
     pages = {1--26},
     publisher = {D\'epartement de Math\'ematiques et Informatique, Universit\'e de Rennes},
     number = {S4},
     year = {1974},
     language = {en},
     url = {http://www.numdam.org/item/PSMIR_1974___S4_A1_0/}
}