@article{10_4064_fm_97_1_1_8,
     author = {J. Bryszewski},
     title = {On a class of multi-valued vector fields in {Banach} spaces},
     journal = {Fundamenta Mathematicae},
     pages = {1--8},
     publisher = {mathdoc},
     volume = {97},
     number = {1},
     year = {1977},
     doi = {10.4064/fm-97-1-1-8},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-97-1-1-8/}
}