1. Rock Anchors—State of the Art;Littlejohn,1977
2. Anchored footings for transmission towers;Saliman,1968
3. Reply to Aberdeen University Questionnaire;Hilf,1973
4. Resin anchorages;Mayfield;Civil Engng, Lond.,1978
5. Resin anchorages;Mayfield;Civil Engng, Lond.,1978