@article{JIS_2016__19_4_a6,
     author = {Choudhry,  Ajai and Juyal,  Abhishek},
     title = {Rational points in arithmetic progression on the unit circle},
     journal = {Journal of integer sequences},
     year = {2016},
     volume = {19},
     number = {4},
     zbl = {1415.11060},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2016__19_4_a6/}
}