An Extension of the Periodicity Lemma to Longer Periods (Invited Lecture).

Aviezri S. Fraenkel Jamie Simpson An Extension of the Periodicity Lemma to Longer Periods (Invited Lecture). 98-105 2001 conf/cpm/2001 CPM http://link.springer.de/link/service/series/0558/bibs/2089/20890098.htm db/conf/cpm/cpm2001.html#FraenkelS01