Paper  doi  bibtex   

@article{bolt_identification_1969,
	Author = {Bolt, Richard H and Cooper, Franklin S and David Jr, Edward E and Denes, Peter B and Pickett, James M and Stevens, Kenneth N},
	Date = {1969},
	Date-Modified = {2017-04-19 08:04:06 +0000},
	Doi = {10.1126/science.166.3903.338},
	Journal = {Science},
	Keywords = {acoustic phonetics, forensic, phonetics, spectrogram},
	Number = {3903},
	Pages = {338-342},
	Title = {Identification of a speaker by speech spectrograms},
	Url = {http://dx.doi.org/10.1126/science.166.3903.338},
	Volume = {166},
	Bdsk-Url-1 = {http://dx.doi.org/10.1126/science.166.3903.338}}