@article{DM_2013_25_4_a4,
     author = {V. V. Astakhov},
     title = {On the existence and the number of stationary points of discrete logarithm to a~base other than a~primitive root},
     journal = {Diskretnaya Matematika},
     pages = {41--53},
     publisher = {mathdoc},
     volume = {25},
     number = {4},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2013_25_4_a4/}
}