@article{AM2_1983__26_137000,
     author = {Claudi Alsina},
     title = {On convex triangle functions.},
     journal = {Aequationes mathematicae},
     pages = {191--196},
     publisher = {mathdoc},
     volume = {26},
     year = {1983},
     zbl = {0564.39006},
     url = {http://geodesic.mathdoc.fr/item/AM2_1983__26_137000/}
}