@article{10_4153_CJM_1972_093_x,
     author = {Day, Peter W.},
     title = {Rearrangement {Inequalities}},
     journal = {Canadian journal of mathematics},
     pages = {930--943},
     year = {1972},
     volume = {24},
     number = {5},
     doi = {10.4153/CJM-1972-093-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1972-093-x/}
}