@article{HHA_2011_13_1_a14,
     author = {Erg\"un Yal\c{c}in},
     title = {Productive elements in group cohomology},
     journal = {Homology, homotopy, and applications},
     pages = {381--401},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {2011},
     doi = {10.4310/HHA.2011.v13.n1.a15},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4310/HHA.2011.v13.n1.a15/}
}