Large rock caverns : proceedings of the international symposium, Helsinki, Finland, Aug. 25-28, 1986 / edited by K.H.O. Saari
Large rock caverns : proceedings of the international symposium, Helsinki, Finland, Aug. 25-28, 1986 / edited by K.H.O. Saari - - Oxford Pergamon Press, 1987 - v.1 22.5 cm - .
0-08-034078-40
Caves-Congresses
Tunneling-Congresses
Underground construction-Congresses
624.19 Lar:86-1