author= {Macherey, Wolfgang and Schl{\\"u}ter, Ralf and Ney, Hermann},
title= {Discriminative Training with Tied Covariance Matrices},
booktitle= {Interspeech},
year= 2004,
pages= {681-684},
address= {Jeju Island, Korea},
month= oct,
volume= {1},
booktitlelink= {http://www.isca-speech.org/archive/interspeech_2004/index.html},
pdf = {https://www-i6.informatik.rwth-aachen.de/publications/downloader.php?id=418&row=pdf}