@article{MZ_1989__202_1_174106,
     author = {William M. Singer},
     title = {The {Transfer} in {Homological} {Algebra.}},
     journal = {Mathematische Zeitschrift},
     pages = {493--524},
     publisher = {mathdoc},
     volume = {202},
     number = {1},
     year = {1989},
     zbl = {0687.55014},
     url = {http://geodesic.mathdoc.fr/item/MZ_1989__202_1_174106/}
}