@book{gersho92vector, author = {Gersho, A. and Gray, R. M.}, interhash = {7e3e68a664dab7c69e54634075152068}, intrahash = {61b659ce7523fd65779facca9c6282b5}, publisher = {Kluwer Academic Publishers}, title = {Vector quantization and signal compression}, year = 1992 }