@techreport{weko_142675_1,
   author	 = "Fernando,Villavicencio and Jordi,Bonada and Junichi,Yamagish and Michel,Pucher",
   title	 = "Efficient Pitch Estimation on Natural Opera-Singing by a Spectral Correlation based Strategy",
   year 	 = "2015",
   institution	 = "Sound and Media Group, National Institute of Informatics, Music Technology Group, Universitat Pompeu Fabra, Sound and Media Group, National Institute of Informatics, Telecommunications Research Center Vienna (FTW)",
   number	 = "1",
   month	 = "jul"
}