@article{10_4064_cm89_1_6,
     author = {Ryszard Deszcz and Marian Hotlo\'s and Zerrin Sent\"urk},
     title = {Quasi-Einstein hypersurfaces {in
semi-Riemannian} space forms},
     journal = {Colloquium Mathematicum},
     pages = {81--97},
     publisher = {mathdoc},
     volume = {89},
     number = {1},
     year = {2001},
     doi = {10.4064/cm89-1-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm89-1-6/}
}