@article{MZ_1992__210_1_174401, author = {Wen-Hsiung Lin}, title = {Unstable ext groups over the {Steenrod} algebra by injective resolutions.}, journal = {Mathematische Zeitschrift}, pages = {255--266}, publisher = {mathdoc}, volume = {210}, number = {1}, year = {1992}, zbl = {0765.20016}, url = {http://geodesic.mathdoc.fr/item/MZ_1992__210_1_174401/} }