@article{CMH_1976__51_139647,
     author = {W.K. Hayman and S. Friedland},
     title = {Eigenvalue {Inequalities} for the {Dirichlet} {Problem} on {Spheres} and the {Growth} of {Subharmonic} {Functions}},
     journal = {Commentarii mathematici Helvetici},
     pages = {133--162},
     publisher = {mathdoc},
     volume = {51},
     year = {1976},
     zbl = {0339.31003},
     url = {http://geodesic.mathdoc.fr/item/CMH_1976__51_139647/}
}