Your query returned 2 results.

• Lateral Pile Response due to Interface Yielding,
  W.D. Guo
  Paper 108 from CCP: 73, ISBN 0-948749-77-6 (2001)
  
• Subgrade Modulus for Laterally Loaded Piles,
  W.D. Guo
  Paper 112 from CCP: 73, ISBN 0-948749-77-6 (2001)