@article{10_4064__41_1_195_204,
     author = {O. Richter and C. Klein},
     title = {Algebro-geometric approach to the {Ernst} equation {I.} {Mathematical} {Preliminaries}},
     journal = {Banach Center Publications},
     pages = {195--204},
     publisher = {mathdoc},
     volume = {41},
     number = {1},
     year = {1997},
     doi = {10.4064/-41-1-195-204},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/-41-1-195-204/}
}