@article{01374882,
title = {Some inequalities for the Hersch-Pfluger distortion function.},
journal = {Journal of Inequalities and Applications [electronic only]},
volume = {4},
year = {1999},
pages = {115-139},
doi = {10.1155/S1025583499000326},
zbl = {0946.30010},
language = {en},
url = {http://dml.mathdoc.fr/item/01374882}
}
Qiu, S.-L.; Vamanamurthy, M.K.; Vuorinen, M. Some inequalities for the Hersch-Pfluger distortion function.. Journal of Inequalities and Applications [electronic only], Tome 4 (1999) pp. 115-139. doi : 10.1155/S1025583499000326. http://gdmltest.u-ga.fr/item/01374882/