@article{10_4153_CJM_1978_091_8,
     author = {Simon, Udo},
     title = {Curvature {Bounds} for the {Spectrum} of {Closed} {Einstein} {Spaces}},
     journal = {Canadian journal of mathematics},
     pages = {1087--1091},
     year = {1978},
     volume = {30},
     number = {5},
     doi = {10.4153/CJM-1978-091-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1978-091-8/}
}