Your query returned 2 results.

• Recent Developments in the LUSAS Finite Element System,
  L.P.R. Lyons, A.J. Rent, A.P. Bell and A.J.L. Crook
  Paper 8.1 from CCP: 9/10, ISBN 0-948749-10-5 (1989)
  
• The LUCAS Finite Element System with Reference to the Construction Industry,
  D.J. Irving and L.P.R. Lyons
  Paper 16.5 from CCP: 2/3, ISBN 0-948749-00-8 (1985)