@article{10_4153_S0008439519000602,
     author = {Maier, Helmut and Rassias, Michael Th.},
     title = {Cotangent {Sums} {Related} to the {Riemann} {Hypothesis} for {Various} {Shifts} of the {Argument}},
     journal = {Canadian mathematical bulletin},
     pages = {522--535},
     year = {2020},
     volume = {63},
     number = {3},
     doi = {10.4153/S0008439519000602},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/S0008439519000602/}
}