@article{JRAM_1979__305_152080,
     author = {Robert Speiser},
     title = {Extending meromorphic functions on ...m x ...n.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {126--133},
     publisher = {mathdoc},
     volume = {305},
     year = {1979},
     zbl = {0392.14001},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1979__305_152080/}
}