Proceedings of AAAI spring sympsoium Cross-Language Text and Speech Retrieval.
David Hull and Douglas Oard. 1997.
http://www.ee.umd.edu/medlab/filter/sss/papers/

Proceedings of the ESCA ETRW workshop Accessing Information in Spoken Audio.
Tony Robinson and Steve Renals. 1999.
http://www.dcs.shef.ac.uk/research/groups/spandh/projects/thisl/esca99.html

Speech and Language Technologies for Audio Indexing and Retrieval.
John Makhoul and Francis Kubala and Timothy Leek and Daben Liu and Long Nguyen and Richard Schwartz and Amit Srivastava.
Proceedings of the IEEE. 88 (8). 2000. 1338 -- 1353.
http://www.bbn.com/speech/docs/papers/Audio-Indexing-Retrieval.pdf

Speech Retrieval is the process of retrieving spoken audio material (documents)in response to a search query. Search queries can be spoken or textual. Speech retrieval makes use of techniques from speech recognition, natural language understanding and information retrieval. Possible applications are the indexing of archives of broadcast material, and monitoring of telephone conversations.