@article{MZ_1953__59_169392,
     author = {M. Pinl},
     title = {B-Kugelbilder reeller {Minimalfl\"achen} in {R4.}},
     journal = {Mathematische Zeitschrift},
     pages = {290--295},
     publisher = {mathdoc},
     volume = {59},
     year = {1953},
     url = {http://geodesic.mathdoc.fr/item/MZ_1953__59_169392/}
}