TY - RPRT TI - Analysis of fractures from borehole televiewer logs in a 500m deep hole at Xiaguan, Yunnan province, Southwest China AU - Qingshan Zhai AU - J.E. Springer AU - Mark D. Zoback PY - 1990 DO - 10.1016/0079-1946(89)90025-6 UR - https://pubs.usgs.gov/publication/70016097 ID - 70016097 ER -