1. Underground support design using block theory to determine keyblock bolting requirements;Shi,1963
2. Keyblock bolting;Shi,1983
3. A multiplier method for identifying keyblocks in excavations through jointed rock;Delport;SIAM J. Alg. Disc. Meth.,1986
4. Keyblock characterization of jointed rock;Vreede,1985
5. Stochastic models for rock instability in tunnels;McCullagh;J. R. Statist. Soc. B,1984