@article{PM_1993_1993_1_a21,
     author = {Oliva, Waldyr M. and Kuhl, Nelson M. and Magalh\^aes, Luiz T.},
     title = {Difeomorfismos de {Rn} con jacobianos oscilatorios.},
     journal = {Publicacions matem\`atiques},
     pages = {255-269},
     publisher = {mathdoc},
     volume = {37},
     number = {2},
     year = {1993},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PM_1993_1993_1_a21/}
}