@article{CRMATH_2015__353_12_1129_0,
     author = {V{\^\i}lcu, Alina Daniela and V{\^\i}lcu, Gabriel Eduard},
     title = {Some characterizations of the quasi-sum production models with proportional marginal rate of substitution},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {1129--1133},
     publisher = {Elsevier},
     volume = {353},
     number = {12},
     year = {2015},
     doi = {10.1016/j.crma.2015.09.019},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2015.09.019/}
}