@Article{JPDE-16-1, author = {Boling Guo }, title = {Congratulation on Professor Zhou Yulin 80th Birthday}, journal = {Journal of Partial Differential Equations}, year = {2003}, volume = {16}, number = {1}, pages = {1--7}, abstract = {}, issn = {2079-732X}, doi = {https://doi.org/}, url = {http://global-sci.org/intro/article_detail/jpde/5400.html} }