@article{10_4064_cm_55_1_79_96,
     author = {Ryszard Deszcz and Stanis{\l}aw Ewert-Krzemieniewski and Jerzy Policht},
     title = {On totally umbilical submanifolds of conformally birecurrent manifolds},
     journal = {Colloquium Mathematicum},
     pages = {79--96},
     publisher = {mathdoc},
     volume = {55},
     number = {1},
     year = {1987},
     doi = {10.4064/cm-55-1-79-96},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-55-1-79-96/}
}