中国科学院数学与系统科学研究院期刊网
AMS
Maximal Abelian Subalgebras of the Hyperfinite Factor, Entropy and Ergodic Theory
S. NESHVEYEV, E. STΦRMER
Acta Mathematica Sinica . 2003, (3): 599 -604 .  DOI: 10.1007/s10114-003-0274-2