Keiichi Funaki Tatsuhiko Kinjo Robust F0 Estimation Using ELS-Based Robust Complex Speech Analysis. 868-871 2008 91-A IEICE Transactions 3 http://dx.doi.org/10.1093/ietfec/e91-a.3.868 db/journals/ieicet/ieicet91a.html#FunakiK08