Department of Mathematical Sciences, University of Tampere, P.O. Box 607, Tampere FIN-33101, Finland
Copyright © 1996 Hindawi Publishing Corporation. This is an open access article distributed under the
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How to Cite this Article
Pentti Haukkanen, “Some characterizations of totients,” International Journal of Mathematics and Mathematical Sciences, vol. 19, no. 2, pp. 209-217, 1996. doi:10.1155/S0161171296000312