中国科学院数学与系统科学研究院期刊网
AMS
Fractional-Linear Transformations of Operator Balls; Applications to Dynamical Systems
V. A. KHATSKEVICH, V. A. SENDEROV
Acta Mathematica Sinica . 2006, (6): 1687 -1694 .  DOI: 10.1007/s10114-005-0694-2