@article{ZAA_1999__18_3_48436,
     author = {G\"opfert, A. and Tammer, Chr. and Z\u{a}linescu, C.},
     title = {A new minimal point theorem in product spaces.},
     journal = {Zeitschrift f\"ur Analysis und ihre Anwendungen},
     pages = {767--770},
     publisher = {mathdoc},
     volume = {18},
     number = {3},
     year = {1999},
     zbl = {0938.49010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZAA_1999__18_3_48436/}
}