Seiichiro Tani Masaki Nakanishi Shigeru Yamashita Multi-Party Quantum Communication Complexity with Routed Messages. 191-199 2009 92-D IEICE Transactions 2 http://search.ieice.org/bin/summary.php?id=e92-d_2_191&category=D&year=2009&lang=E&abst= db/journals/ieicet/ieicet92d.html#TaniNY09