@article{PM_1989_1989_1_a29,
     author = {Hardie, Keith A. and Jansen, A. V.},
     title = {Productos de {Whitehead} por grupos de regimiento {(II).}},
     journal = {Publicacions matem\`atiques},
     pages = {205-212},
     publisher = {mathdoc},
     volume = {33},
     number = {2},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PM_1989_1989_1_a29/}
}