Text ( visual ) : unmediated Graph-theoretic concepts in computer science : 17th International Workshop, WG '91, Fischbachau, Germany, June 17-19, 1991 : proceedings / G. Schmidt, R. Berghammer (eds.). -- : gw ; : us. -- Berlin ; Tokyo : Springer-Verlag , c1992. -- viii, 252 p. : ill. ; 25 cm. -- (Lecture notes in computer science ; 570). -- ISBN 3540551212 ; 0387551212 ; (BA13724200) ; https://ci.nii.ac.jp/ncid/BA13724200 Other Title(s): WG '91 : Graph-theoretic concepts in computer science. -- Author Heading(s): Schmidt, Gunther ; Berghammer, R. (Rudolf) ; International Workshop on Graph-Theoretic Concepts in Computer Science. -- Classification(s): LCC : QA75.5 ; DC20 : 004/.01/5115. -- Subject Heading(s): LCSH : Computer science -- Congresses ; LCSH : Graph theory -- Congresses