@article{oai:repository.dl.itc.u-tokyo.ac.jp:00041083,
 author = {Nagano, Tadashi},
 journal = {Scientific papers of the College of General Education, University of Tokyo},
 month = {},
 note = {application/pdf},
 pages = {177--182},
 title = {On the Minimum Eigenvalues of the Laplacians in Riemannian Manifolds},
 volume = {11},
 year = {1961}
}