@article{10_21136_CMJ_2020_0579_18,
     author = {Liu, Jiancheng and Mi, Rong},
     title = {New estimates for the first eigenvalue of the {Jacobi} operator on closed hypersurfaces in {Riemannian} space forms},
     journal = {Czechoslovak Mathematical Journal},
     pages = {881--890},
     publisher = {mathdoc},
     volume = {70},
     number = {3},
     year = {2020},
     doi = {10.21136/CMJ.2020.0579-18},
     mrnumber = {4151711},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2020.0579-18/}
}