@article{MAN_1937__114_159924,
     author = {G. Bol},
     title = {Gewebe und {Gruppen.} {(Topologische} {Fragen} der {Differentialgeometrie} 65)},
     journal = {Mathematische Annalen},
     pages = {414--431},
     publisher = {mathdoc},
     volume = {114},
     year = {1937},
     url = {http://geodesic.mathdoc.fr/item/MAN_1937__114_159924/}
}