TY  - BOOK
AU  -  EHRING, H.
AU  - 
TI  -  Graph grammars and their application to computer science  4th International Workshop, Bremen, Germany, March 5-9, 1990  proceedings
SN  -  0-387-54478-X;  3-540-54478-X
CY  -  Berlin;  Heidelberg;  New York
KW  -  lucrări workshop
AV  -  III 13308
ER  -