An operational system for subject switching between controlled vocabularies : a computational linguistics approach /

Bibliographic Details

Main Author:	Silvester, June P.
Corporate Authors:	United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch, Planning Research Corporation
Other Authors:	Newton, Roxanne, Klingbiel, Paul H.
Format:	Government Document Book
Language:	English
Published:	[Washington, D.C.?] : National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1984.
Series:	NASA contractor report ; 3838.
Subjects:	Machine translating. Information storage and retrieval systems.