@article{10_4064_aa119_2_2,
     author = {P\"ar Kurlberg and Carl Pomerance},
     title = {On the periods of the linear congruential
 and power generators},
     journal = {Acta Arithmetica},
     pages = {149--169},
     publisher = {mathdoc},
     volume = {119},
     number = {2},
     year = {2005},
     doi = {10.4064/aa119-2-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa119-2-2/}
}