@ARTICLE{
TITLE="Discovering Speech Phones Using Convolutive Non-negative Matrix Factorisation with a Sparseness Constraint",
AUTHOR="Paul D. O'Grady and Barak A. Pearlmutter",
YEAR="2008",
VOLUME="72",
NUMBER="1-3",
PAGES="88-101",
JOURNAL="Neurocomputing"
}