@article{CMH_1979__54_139785,
     author = {J.M. Anderson},
     title = {On division by inner factors.},
     journal = {Commentarii mathematici Helvetici},
     pages = {309--317},
     publisher = {mathdoc},
     volume = {54},
     year = {1979},
     zbl = {0411.30020},
     url = {http://geodesic.mathdoc.fr/item/CMH_1979__54_139785/}
}