Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456

• Joost Engelfriet and Vincent van Oostrom
  Logical Description of Context-Free Graph Languages
  Journal of Computer and System Sciences, Volume 55, No. 3, pp. 489 - 503, December 1997
  (abstract)
  
  
• Joost Engelfriet and Vincent van Oostrom
  Regular Description of Context-Free Graph Languages
  Journal of Computer and System Sciences, Volume 53, No. 3, pp. 556 - 574, December 1996
  (abstract)
  
  
• Vincent van Oostrom
  Graafgrammatica's en Monadische 2de orde Logica
  Master's thesis, Rijksuniversiteit Leiden, Leiden, 82 pages, March 17, 1989
  (abstract)