@article{ZAA_2000__19_2_55223,
     author = {Tutschke, W.},
     title = {Identity surfaces.},
     journal = {Zeitschrift f\"ur Analysis und ihre Anwendungen},
     pages = {529--537},
     publisher = {mathdoc},
     volume = {19},
     number = {2},
     year = {2000},
     zbl = {1158.35394},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZAA_2000__19_2_55223/}
}