@article{MAN_1980__249_163397,
     author = {Peter L\"offler},
     title = {\"Uber rationale {Homologiesph\"aren.}},
     journal = {Mathematische Annalen},
     pages = {141--152},
     publisher = {mathdoc},
     volume = {249},
     year = {1980},
     zbl = {0417.55003},
     url = {http://geodesic.mathdoc.fr/item/MAN_1980__249_163397/}
}