@article{32733, note = {June 1976, October 1978.}, author = {Balachandra, M. B.}, url = {http://library.usi.edu/record/32733}, title = {The Three-dimensional structural analysis of double-entry and single-entry coal mines : final report /}, publisher = {Agbabian Associates,}, recid = {32733}, pages = {3 v. :}, address = {El Segundo, CA :}, year = {1976}, }