@article{BASM_2018_3_a4,
     author = {Alejandro Alvarado-Garc{\'\i}a and C\'esar Cejudo-Castilla and Tania Gabriela P\'erez-Quijano and Ivan Fernando Vilchis-Montalvo},
     title = {On pseudo-injective and pseudo-projective modules},
     journal = {Buletinul Academiei de \c{S}tiin\c{t}e a Republicii Moldova. Matematica},
     pages = {57--67},
     publisher = {mathdoc},
     number = {3},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BASM_2018_3_a4/}
}