@article{KJM_2020_44_3_a9,
     author = {Karanvir Singh and Kanak Modi},
     title = {Convergence of {Double} {Cosine} {Series}},
     journal = {Kragujevac Journal of Mathematics},
     pages = {443 },
     year = {2020},
     volume = {44},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KJM_2020_44_3_a9/}
}