J. E. Hershey

• The eureka method
• Cryptography demystified
• Data transportation and protection
• Data Transportation and Protection
• Direct sequence spread spectrum techniques
• Direct Sequence Spread Spectrum Techniques (M-23)
• Direct Sequence Spread Spectrum Techniques (Spread Spectrum Series , No 1)
• Proposed direct sequence spread spectrum voice techniques for the amateur radio service
• The discrete logarithm public cryptographic system