@article{CMH_1970__45_251483,
     author = {Steven Bank},
     title = {Addendum to },
     journal = {Commentarii mathematici Helvetici},
     pages = {505--505},
     publisher = {mathdoc},
     volume = {45},
     year = {1970},
     zbl = {0212.11101},
     url = {http://geodesic.mathdoc.fr/item/CMH_1970__45_251483/}
}