@article{10_4064_cm_62_1_103_120,
     author = {Ryszard Deszcz},
     title = {On four-dimensional {Riemannian} warped product manifolds satisfying certain pseudo-symmetry curvature conditions},
     journal = {Colloquium Mathematicum},
     pages = {103--120},
     publisher = {mathdoc},
     volume = {62},
     number = {1},
     year = {1991},
     doi = {10.4064/cm-62-1-103-120},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-62-1-103-120/}
}