Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Alvin M. Liberman and Pierre C. Delattre and Louis J. Gerstman and Franklin S. Cooper,Tempo of frequency change as a cue for distinguishing classes of speech sounds.,Journal of Experimental Psychology,0022-1015,American Psychological Association (APA),1956,52,2,127-137,https://cir.nii.ac.jp/crid/1364233268170439296,https://doi.org/10.1037/h0041240