@article{GDZPPN002409097,
title = {Examples in the Classification Theory of Riemannian Manifolds and the Equation ...u = Pu.},
journal = {Mathematische Zeitschrift},
volume = {121},
year = {1971},
pages = {233-238},
zbl = {0213.12305},
url = {http://dml.mathdoc.fr/item/GDZPPN002409097}
}
Glasner, M.; Katz, R.; Nakai, M. Examples in the Classification Theory of Riemannian Manifolds and the Equation ...u = Pu.. Mathematische Zeitschrift, Tome 121 (1971) pp. 233-238. http://gdmltest.u-ga.fr/item/GDZPPN002409097/