Languages
          
        
        
      Qiao, Yongzhong.
Overview
            | Works: | 1 works in 1 publications in 1 languages | |
|---|---|---|
Titles
          
                  
                    Maintenance time and the industry development of patents = empirical research with evidence from China /
                  
                  by: 
                  Qiao, Yongzhong.; SpringerLink (Online service)
                  (Language materials, printed)