@misc{indiciae72f6ab0cce07, title = {Why are speech spectrograms hard to read?}, author = {A M Liberman and F S Cooper and D P Shankweiler and M Studdert-Kennedy}, year = {1968}, url = {https://pubmed.ncbi.nlm.nih.gov/5651471/}, note = {Source identifier: 5651471} }