@article{MAN_1973__205_162492,
     author = {Karl Heinrich Hofmann and Albert Stralka},
     title = {Mapping {Cylinders} and {Compact} {Monoids.}},
     journal = {Mathematische Annalen},
     pages = {219--240},
     publisher = {mathdoc},
     volume = {205},
     year = {1973},
     zbl = {0264.22004},
     url = {http://geodesic.mathdoc.fr/item/MAN_1973__205_162492/}
}