@article{MZ_1968__104_170930,
     author = {Wilhelm Stoll},
     title = {The {Fiber} {Integral} is {Constant.}},
     journal = {Mathematische Zeitschrift},
     pages = {65--73},
     publisher = {mathdoc},
     volume = {104},
     year = {1968},
     zbl = {0164.09302},
     url = {http://geodesic.mathdoc.fr/item/MZ_1968__104_170930/}
}