R. Selmer-Olsen

GENERAL DESIGN PROCEDURE FOR UNDERGROUND OPENINGS IN NORWAY

R. Selmer-Olsen, E. Broch, 1978 .

TUNNEL COLLAPSES IN SWELLING CLAY ZONES

R. Selmer-Olsen, A. Palmstrøm, 1989 .

Stability problems in underground constructions caused by montmorillonite-carrying joints and faults

T. L. Brekke, R. Selmer-Olsen, R. Selmer-Olsen, 1965 .

Underground openings filled with high-pressure water or air

R. Selmer-Olsen, 1974 .