@article{10_21136_MB_2015_144327,
     author = {Benedikt, Ji\v{r}{\'\i}},
     title = {Estimates of the principal eigenvalue of the $p${-Laplacian} and the $p$-biharmonic operator},
     journal = {Mathematica Bohemica},
     pages = {215--222},
     publisher = {mathdoc},
     volume = {140},
     number = {2},
     year = {2015},
     doi = {10.21136/MB.2015.144327},
     mrnumber = {3368495},
     zbl = {06486935},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2015.144327/}
}