@article{JNSA_2018_11_7_a1,
     author = {Ra\v{s}ajski,  Marija and Lutovac, Tatjana  and Male\v{s}evi\'c, Branko},
     title = {Sharpening and generalizations of {Shafer-Fink} and {Wilker} type inequalities: a new approach },
     journal = {Journal of nonlinear sciences and its applications},
     pages = {885-893},
     publisher = {mathdoc},
     volume = {11},
     number = {7},
     year = {2018},
     doi = {10.22436/jnsa.011.07.02},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.22436/jnsa.011.07.02/}
}