@article{NKGWGUG_1888__1888_180189,
     author = {Felix Klein},
     title = {Ueber irrationale {Covarianten}},
     journal = {Nachrichten von der K\"onigl. Gesellschaft der Wissenschaften und der Georg-Augusts-Universit\"at zu G\"ottingen},
     pages = {191--194},
     publisher = {mathdoc},
     volume = {1888},
     year = {1888},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/NKGWGUG_1888__1888_180189/}
}