@patent{rathi@1,
	author={Rathinavelu Chengalvarayan, et al},
	institution={{US6055499}},
	month={April},
	title={Use of periodicity and jitter for automatic speech recognition},
	url={http://www.research.att.com/export/sites/att_labs/people/Chengalvarayan_Rathinavelu/library/patents/US6055499.pdf},
	year=2000,
}