@article{10_1017_S204061850003478X,
     author = {Rosen, David},
     title = {An arithmetic characterization of the parabolic points of {G(2cos} \ensuremath{\pi}/5)},
     journal = {Glasgow mathematical journal},
     pages = {88--96},
     year = {1963},
     volume = {6},
     number = {2},
     doi = {10.1017/S204061850003478X},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S204061850003478X/}
}