@article{CM_1970__22_3_261_0,
     author = {Croom, F. H.},
     title = {Homotopy type of mapping tracks},
     journal = {Compositio Mathematica},
     pages = {261--264},
     publisher = {Wolters-Noordhoff Publishing},
     volume = {22},
     number = {3},
     year = {1970},
     mrnumber = {278302},
     zbl = {0198.56202},
     language = {en},
     url = {http://www.numdam.org/item/CM_1970__22_3_261_0/}
}