1) T. Kageyama, K. Mochizuki and Y. Takashima, “Melody retrieval with humming,” Proc. ICMC 1993, pp. 349–351 (1993).
2) A. Ghias, J. Logan, D. Chamberlin and B. C. Smith, “Query by humming: Musical information retrieval in an audio database,” Proc. ACM Multimedia 95, pp. 231–236 (1995).
3) T. Sonoda, M. Goto and Y. Muraoka, “A WWW-based melody retrieval system,” Proc. ICMC 1998, pp. 349–352 (1998).
4) S. Pauws, “CubyHum: A fully operational query by humming system,” Proc. ISMIR 2002, pp. 187–196 (2002).
5) T. Sonoda, T. Ikenaga, K. Shimizu and Y. Muraoka, “The design method of a melody retrieval system on parallelized computers,” Proc. WEDELMUSIC 2002, pp. 66–73 (2002).