@article{10_4064_sm_68_1_49_66,
     author = {T. Le\.za\'nski},
     title = {Sur le minimum des fonctionnelles dans les espaces de {Banach}},
     journal = {Studia Mathematica},
     pages = {49--66},
     year = {1980},
     volume = {68},
     number = {1},
     doi = {10.4064/sm-68-1-49-66},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-68-1-49-66/}
}