@article{MS2_1972__31_166268,
     author = {Ib Madsen and Nils A. Baas},
     title = {On the {Realization} of {Certain} {Modules} over the {Steenrod} {Algebra.}},
     journal = {Mathematica Scandinavica},
     pages = {220--224},
     publisher = {mathdoc},
     volume = {31},
     year = {1972},
     zbl = {0248.55021},
     url = {http://geodesic.mathdoc.fr/item/MS2_1972__31_166268/}
}