Inequalities for the generalized trigonometric and hyperbolic functions

: Riku Klén, Matti Vuorinen, Xioahui Zhang

: 2014

: Journal of Mathematical Analysis and Applications

: 409

: 1

: 521

: 529

: 9

: 0022-247X

DOI: https://doi.org/10.1016/j.jmaa.2013.07.021