@article{CMUC_1975_16_2_a2,
     author = {Fath el Bab, H.},
     title = {On surfaces with constant mean curvature},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {245--254},
     year = {1975},
     volume = {16},
     number = {2},
     mrnumber = {0377770},
     zbl = {0304.53004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1975_16_2_a2/}
}