@article{10.30755/NSJOM.05286,
     author = {Mohammad W. Alomari},
     title = {Sharp {Wirtinger's} type inequalities {For} double integrals with applications
},
     journal = {Novi Sad Journal of Mathematics},
     pages = {1 - 16},
     publisher = {mathdoc},
     volume = {50},
     number = {1},
     year = {2020},
     doi = {10.30755/NSJOM.05286},
     url = {http://geodesic.mathdoc.fr/articles/10.30755/NSJOM.05286/}
}