Shigenori Uchiyama Simple Remarks on Carmichael Numbers. 326-328 2009 92-A IEICE Transactions 1 http://search.ieice.org/bin/summary.php?id=e92-a_1_326&category=A&year=2009&lang=E&abst= db/journals/ieicet/ieicet92a.html#Uchiyama09