@article{EXMATH_1987_1987_1_a6,
     author = {Reyes, W.},
     title = {Una propiedad de los planos isoclinos de {R4}},
     journal = {Extracta mathematicae},
     pages = {20-22},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {1987},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_1987_1987_1_a6/}
}