@article{10_4153_S000843952300022X,
     author = {\v{C}ech, Martin},
     title = {Mean value of real {Dirichlet} characters using a double {Dirichlet} series},
     journal = {Canadian mathematical bulletin},
     pages = {1135--1151},
     year = {2023},
     volume = {66},
     number = {4},
     doi = {10.4153/S000843952300022X},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/S000843952300022X/}
}