author= {Och, F. J.},
title= {Statistical Machine Translation: From Single-Word Models to Alignment Templates},
school= {RWTH Aachen University},
year= 2002,
address= {Computer Science Department, RWTH Aachen University, Aachen, Germany},
month= oct,
pdf = {https://www-i6.informatik.rwth-aachen.de/publications/downloader.php?id=520&row=pdf}