High Density Disc Recording Systems
1408
Levens, Leo M.
American Foundation for the Blind, Inc., New York, NY
October 1968
Convention Paper
Free to AES members & instutions and $33 to non-members
High-Density Disc Recording Systems
1582
Levens, Leo M.
American Foundation for the Blind, Inc., New York, NY
June 1969
Journal Article
Free to AES members & instutions and $33 to non-members
The Harmonic Compressor, A System for Doubling Information Rates of Speech
1354
Breuel, John W.; Levens, Leo M.
American Foundation for the Blind, New York, NY
October 1969
Convention Paper
Free to AES members & instutions and $33 to non-members
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