@article{CMJ_2005__55_1_a14,
     author = {Adachi, Toshiaki and Maeda, Sadahiro},
     title = {Characterization of totally umbilic hypersurfaces in a space form by circles},
     journal = {Czechoslovak Mathematical Journal},
     pages = {203--207},
     publisher = {mathdoc},
     volume = {55},
     number = {1},
     year = {2005},
     mrnumber = {2121667},
     zbl = {1081.53020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2005__55_1_a14/}
}