@article{MS2_1963__12_165836,
     author = {Leif Kristensen},
     title = {On the {Cohomology} of {Spaces} with {Two} {Non-Vanishing} {Homotopy} {Groups.}},
     journal = {Mathematica Scandinavica},
     pages = {83--105},
     publisher = {mathdoc},
     volume = {12},
     year = {1963},
     zbl = {0117.16301},
     url = {http://geodesic.mathdoc.fr/item/MS2_1963__12_165836/}
}