1. Technical Report 8901, AD A210554;EP Burrows,1989
2. Technical Report 8206, AD A127348;EE Brueggemann,1983
3. Final Report AD A267467;DT Burton,1993
4. Final Report ORNL-6178, AD A169506;EL Etnier,1986
5. Technical Report 78-175, AD A080195;DJ Glover,1979