On Jordan type inequalities for hyperbolic functions.
Klén, R. ; Visuri, M. ; Vuorinen, M.
Journal of Inequalities and Applications [electronic only], Tome 2010 (2010), / Harvested from The Electronic Library of Mathematics
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Publié le : 2010-01-01
DOI : https://doi.org/10.1155/2010/362548
EUDML-ID : urn:eudml:doc:230059 
@article{05823163,
     title = {On Jordan type inequalities for hyperbolic functions.},
     journal = {Journal of Inequalities and Applications [electronic only]},
     volume = {2010},
     year = {2010},
     doi = {10.1155/2010/362548},
     zbl = {1211.26015},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05823163}
}

Klén, R.; Visuri, M.; Vuorinen, M. On Jordan type inequalities for hyperbolic functions.. Journal of Inequalities and Applications [electronic only], Tome 2010 (2010) . doi : 10.1155/2010/362548. http://gdmltest.u-ga.fr/item/05823163/