Study on the cryogenic toughness of stainless steel weld metals = Etude de la ténacité à basse température du métal fondu en acier inoxydableZHANG ZHIMING; NIU JITAI; SHU LI et al.Quality and reliability in welding. International conference. 1984, pp B.26.1-B.26.6Conference Paper

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