Grey system theory applied to rock mechanicsCAI SIJING; TONG GUANGXU; GAO HUALIN et al.International journal of rock mechanics and mining sciences & geomechanics abstracts. 1993, Vol 30, Num 4, pp 473-478, issn 0148-9062Article

Massive mountain mass structure and rock movement in mines = Structure massive et mouvement de roches dans les minesDING ENBAO; WU YUGENG; LI ZONGLING et al.Developments in geoscience. Chinese Academy of Sciences, contribution to international geological congress. 28. 1989, pp 369-379, 11 p.Conference Paper