T. O. Hagan

Introduction of stabilizing pillars to reduce rockbursts at Western deep levels, limited : Proc 1st International Congress on Rockbursts and Seismicity in Mines, Johannesburg, Sept 1982 P245–252. Publ Johannesburg: SAIMM, 1984

J. H. Tanton, T. F. McCarthy, T. O. Hagan, 1985 .

A case for terrestrial photogrammetry in deep-mine rock structure studies

T. O. Hagan, T. Hagan, 1980 .

Pillar foundation failure studies at a deep South African gold mine : Proc 2nd International Symposium on Rockbursts and Seismicity in Mines, Minneapolis, 8–10 June 1988 P65–69. Publ Rotterdam: A A Balkema, 1990

T. O. Hagan, 1991 .

Stope face support systems

T. O. Hagan, Mkc Roberts, A. Daehnke, 1998 .