Eurocod No. 7 - part No. 3 "The Geotechnical Construction Design - The Field
Tests (CNIS Prague, 2000),
M. Pollard: Roads and Tunnels (Building Marvels, London 2003),
Microstation InRoad and Inrail Design Software (VARS Brno, 2004),
CEN/TC 154-Stones, CEN/TC 227 - Road Materials (Product Standards),
John Aktinson: The Mechanics of Soils and Foundations (McGraw-Hill Comp.London,
New York 1993).