@article{10_4064_fm217_3_2,
     author = {R\"udiger G\"obel and Jos\'e L. Rodr{\'\i}guez and Lutz Str\"ungmann},
     title = {Cellular covers of cotorsion-free modules},
     journal = {Fundamenta Mathematicae},
     pages = {211--231},
     publisher = {mathdoc},
     volume = {217},
     number = {3},
     year = {2012},
     doi = {10.4064/fm217-3-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm217-3-2/}
}