@article{10_4153_CMB_1972_024_4,
     author = {Menon, K. V.},
     title = {An {Inequality} for {Elementary} {Symmetric} {Functions}},
     journal = {Canadian mathematical bulletin},
     pages = {133--135},
     year = {1972},
     volume = {15},
     number = {1},
     doi = {10.4153/CMB-1972-024-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1972-024-4/}
}