@article{EXMATH_1993_1993_1_a1,
     author = {Tarafdar, Debasish and De, U. C.},
     title = {Sobre un tipo de variedad {P-Sasakian.}},
     journal = {Extracta mathematicae},
     pages = {31-36},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {1993},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_1993_1993_1_a1/}
}