@article{MM2_1979__28_154643,
     author = {Shyuichi Izumiya},
     title = {Homotopy {Classification} of {Equivariant} {Regular} {Sections.}},
     journal = {Manuscripta mathematica},
     pages = {337--360},
     publisher = {mathdoc},
     volume = {28},
     year = {1979},
     zbl = {0412.58013},
     url = {http://geodesic.mathdoc.fr/item/MM2_1979__28_154643/}
}