中国科学院数学与系统科学研究院期刊网
Additive Map Preserving Orthogonality or Commuting with
Zhao Fang BAI(1),Jin Chuan HOU
Acta Mathematica Sinica, Chinese Series . 2002, (5): 863 -870 .  DOI: 10.12386/A2002sxxb0112