Acta Mathematicae Applicatae Sinica, English Series
Acta Mathematicae Applicatae Sinica, English Series > 2002 > 18 > 1 > 147-152
Acta Mathematicae Applicatae Sinica, English Series > 2002 > 18 > 1 > 123-130
Acta Mathematicae Applicatae Sinica, English Series > 2002 > 18 > 1 > 77-84
Acta Mathematicae Applicatae Sinica, English Series > 2002 > 18 > 3 > 377-388