@article{PM_1995_1995_1_a5,
     author = {F\'elix, Yves and Thomas, Jean-Claude},
     title = {Subgrupos nilpotentes del grupo de equivalencias en homotop{\'\i}a de fibras.},
     journal = {Publicacions matem\`atiques},
     pages = {95-106},
     publisher = {mathdoc},
     volume = {39},
     number = {1},
     year = {1995},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PM_1995_1995_1_a5/}
}