@article{10_21136_CMJ_2019_0363_18,
     author = {Lu, Wei and Mao, Jing and Wu, Chuanxi},
     title = {A universal bound for lower {Neumann} eigenvalues of the {Laplacian}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {473--482},
     publisher = {mathdoc},
     volume = {70},
     number = {2},
     year = {2020},
     doi = {10.21136/CMJ.2019.0363-18},
     mrnumber = {4111854},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2019.0363-18/}
}