中国科学院数学与系统科学研究院期刊网
AMS
Oblique Derivative Problem for Quasilinear Mixed (Lavrentév-Bitsadze) Equations of Second Order in Two Connected Domains
Guo Chun WEN
Acta Mathematica Sinica . 2013, (9): 1713 -1722 .  DOI: 10.1007/s10114-013-2443-2