@article{CMH_1970__45_139422,
     author = {L.C. Siebenmann},
     title = {A {Total} {Whitehead} {Torsion} {Obstruction} to {Fibering} over the {Circle.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {1--48},
     publisher = {mathdoc},
     volume = {45},
     year = {1970},
     zbl = {0215.24603},
     url = {http://geodesic.mathdoc.fr/item/CMH_1970__45_139422/}
}