Yuichi Ohsita Takashi Miyamura Shin'ichi Arakawa Eiji Oki Kohei Shiomoto Masayuki Murata Estimation of Current Traffic Matrices from Long-Term Traffic Variations. 171-183 2009 92-B IEICE Transactions 1 http://search.ieice.org/bin/summary.php?id=e92-b_1_171&category=B&year=2009&lang=E&abst= db/journals/ieicet/ieicet92b.html#OhsitaMAOSM09