1. Development of general purpose network editing and analysis system-Geans-with the use of graphics;Itoh,1980
2. Programming with abstract data types;Liskov;SIGPLAN Notices,1974
3. Development of analysis programs for transportation networks;Muramatsu;4th Grade Res. Rep. of Sophia Univ.,1980
4. L. R. Ford et al., Flows in Networks. Princeton University Press, New Jersey (192).
5. M. Matsui et al., Skeleton network approach for minimal cost flow problems. To be prepared for submitting to J. Op. Res. Soc. Japan.