@article{01334843,
title = {A new proof of monotonicity for extended mean values.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {22},
year = {1999},
pages = {417-421},
doi = {10.1155/S0161171299224179},
zbl = {0935.26015},
language = {en},
url = {http://dml.mathdoc.fr/item/01334843}
}
Qi, Feng; Xu, Sen-Lin; Debnath, Lokenath. A new proof of monotonicity for extended mean values.. International Journal of Mathematics and Mathematical Sciences, Tome 22 (1999) pp. 417-421. doi : 10.1155/S0161171299224179. http://gdmltest.u-ga.fr/item/01334843/