@article{10_4064_fm_121_1_41_58,
     author = {G. Skordev},
     title = {Fixed point index for open sets in euclidean spaces},
     journal = {Fundamenta Mathematicae},
     pages = {41--58},
     publisher = {mathdoc},
     volume = {121},
     number = {1},
     year = {1984},
     doi = {10.4064/fm-121-1-41-58},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-121-1-41-58/}
}