@article{10_4064_fm_156_1_1_31,
     author = {Luis Javier Hern\'andez-Paricio},
     title = {Fundamental pro-groupoids and covering projections},
     journal = {Fundamenta Mathematicae},
     pages = {1--31},
     publisher = {mathdoc},
     volume = {156},
     number = {1},
     year = {1998},
     doi = {10.4064/fm-156-1-1-31},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-156-1-1-31/}
}