中国科学院数学与系统科学研究院期刊网
THE FILTRATION PROBLEM OF GAS IN A POROUS MEDIUM WITH DOUBLE POROSITY
Bai Dong-hua, Yun Jie
Acta Mathematicae Applicatae Sinica . 1990, (1): 18 -30 .  DOI: 10.12387/C1990003