@article{MAN_1965__162_161326,
     author = {H. Nakano},
     title = {Invariant {Metrics.}},
     journal = {Mathematische Annalen},
     pages = {89--91},
     publisher = {mathdoc},
     volume = {162},
     year = {1965},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MAN_1965__162_161326/}
}