Kuo chi yen shih li hsüeh hui i
Rock Mechanics International Congress on
Congress on Rock Mechanics, International
International Society for Rock Mechanics. Congress
Congrès international de mécanique des roches
Internationaler Kongress über Felsmechanik
International Society for Rock Mechanics. Congrès
International Society for Rock Mechanics. Kongress
Mezhdunarodnyĭ kongress po mekhanike skalʹnykh porod