@inbook{ JARA:37-44,

author = { PASCUAL JARA MARTÍNEZ } ,

title = { Torsion theories and modules },

booktitle = { Contributions to General Algebra, 4 },

isbn = { 3-209-00689-X },

publisher = { Verlag Hilder-Pichler-Tempsky },

pages = { 37 - 44 },

year = { 1987 },

}