Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1973__130_171865, author = {Thomas F. Bickel}, title = {Circles in {(B,} {N)-Groups.}}, journal = {Mathematische Zeitschrift}, pages = {249--254}, publisher = {mathdoc}, volume = {130}, year = {1973}, zbl = {0239.20049}, url = {http://geodesic.mathdoc.fr/item/MZ_1973__130_171865/} }
Thomas F. Bickel. Circles in (B, N)-Groups.. Mathematische Zeitschrift, Tome 130 (1973), pp. 249-254. http://geodesic.mathdoc.fr/item/MZ_1973__130_171865/