Paper  bibtex   

@book{boersma_spectrum:_2003,
	Address = {Amsterdam},
	Author = {Boersma, Paul and Weenink, David},
	Date = {2003},
	Date-Modified = {2016-09-23 19:24:01 +0000},
	Keywords = {acoustic phonetics, filtering, phonetics, Praat, tool},
	Publisher = {Department of Language and Literature, University of Amsterdam},
	Title = {Spectrum: Filter (pass Hann band)...},
	Url = {http://www.fon.hum.uva.nl/praat/manual/Spectrum__Filter__pass_Hann_band____.html},
	Bdsk-Url-1 = {http://www.fon.hum.uva.nl/praat/manual/Spectrum__Filter__pass_Hann_band____.html}}