@article{JRAM_1979__310_152153,
     author = {J.F. Lapenta and A.L. Ludington},
     title = {An algorithm to determine self-producing r-digit g-adic integers.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {100--110},
     publisher = {mathdoc},
     volume = {310},
     year = {1979},
     zbl = {0409.10004},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1979__310_152153/}
}