@article{MS2_1971__29_166203,
     author = {Paul C. Eklof},
     title = {Homogeneous {Universal} {Modules.}},
     journal = {Mathematica Scandinavica},
     pages = {187--196},
     publisher = {mathdoc},
     volume = {29},
     year = {1971},
     zbl = {0235.16017},
     url = {http://geodesic.mathdoc.fr/item/MS2_1971__29_166203/}
}