@article{CMH_1967__42_139338,
     author = {Larry Smith and Paul Baum},
     title = {The {Real} {Cohomology} of {Differentiable} {Fibre} {Bundles.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {171--179},
     publisher = {mathdoc},
     volume = {42},
     year = {1967},
     zbl = {0166.19302},
     url = {http://geodesic.mathdoc.fr/item/CMH_1967__42_139338/}
}