@article{CM_1976__32_3_301_0,
     author = {du Plessis, Andrew},
     title = {Homotopy classification of regular sections},
     journal = {Compositio Mathematica},
     pages = {301--333},
     publisher = {Noordhoff International Publishing},
     volume = {32},
     number = {3},
     year = {1976},
     mrnumber = {413163},
     zbl = {0333.58004},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1976__32_3_301_0/}
}