@article{10_4064_fm_126_1_83_92,
     author = {Helga Schirmer},
     title = {A minimum theorem for n-valued multifunctions},
     journal = {Fundamenta Mathematicae},
     pages = {83--92},
     publisher = {mathdoc},
     volume = {126},
     number = {1},
     year = {1985},
     doi = {10.4064/fm-126-1-83-92},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-126-1-83-92/}
}