@article{MABA_2007_21_1-2_a8,
     author = {G. Ganchev and V. Milousheva},
     title = {A {Generation} of {Foliated} {Semi-Symmetric} {Hypersurfaces} in {Four-Dimensional} {Euclidean} {Space}},
     journal = {Mathematica balkanica},
     pages = {97},
     publisher = {mathdoc},
     volume = {21},
     number = {1-2},
     year = {2007},
     url = {http://geodesic.mathdoc.fr/item/MABA_2007_21_1-2_a8/}
}