@article{CLTM_1988_1988_1_a17,
     author = {Etayo Gordejuela, Fernando},
     title = {Levantamientos e isomorfismos de conmutaci\'on en fibrados de haces.},
     journal = {Collectanea mathematica},
     pages = {231-247},
     publisher = {mathdoc},
     volume = {39},
     number = {3},
     year = {1988},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_1988_1988_1_a17/}
}