@article{10_4064_sm_4_1_70_84,
     author = {S. Mazur},
     title = {\"Uber konvexe {Mengen} in linearen normierten {R\"aumen}},
     journal = {Studia Mathematica},
     pages = {70--84},
     year = {1933},
     volume = {4},
     number = {1},
     doi = {10.4064/sm-4-1-70-84},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-4-1-70-84/}
}