@article{1138846947,
author = {Sario, Leo},
title = {Quasiharmonic degeneracy of Riemannian $N$-manifolds},
journal = {Kodai Math. Sem. Rep.},
volume = {26},
number = {1},
year = {1974},
pages = { 53-57},
language = {en},
url = {http://dml.mathdoc.fr/item/1138846947}
}
Sario, Leo. Quasiharmonic degeneracy of Riemannian $N$-manifolds. Kodai Math. Sem. Rep., Tome 26 (1974) no. 1, pp. 53-57. http://gdmltest.u-ga.fr/item/1138846947/