In memory of professor Xu Guozhang 并列题名:In memory of professor Xu Guozhang In memory of Professor Liao Hua Yang 师范之师：怀念孟宪承：in memory of professor Mengxiancheng in memory of professor Valentin Afraimovich In memory of memory：a romance Biography of professor Hu Chen Wei Biography of professor Hu chen wei In memory of professor zhang wei's 100th anniversary Philosophy of professor Nan