1.

電子ブック
ＥＢ
1. TAPSOFT '87 : Proceedings of the International' Joint Conference on Theory and Practice of Software Development Pisa, Italy, March 23–27, 1987
edited by Hartmut Ehrig, Robert Kowalski, Giorgio Levi, Ugo Montanari
出版情報: Berlin, Heidelberg : Springer-Verlag, 1987
シリーズ名: Lecture Notes in Computer Science ; 249
オンライン: http://dx.doi.org/10.1007/3-540-17660-8
2.

電子ブック
ＥＢ
2. TAPSOFT '87 : Proceedings of the International Joint Conference on Theory and Practice of Software Development Pisa, Italy, March 23–27, 1987
edited by Hartmut Ehrig, Robert Kowalski, Giorgio Levi, Ugo Montanari
出版情報: Berlin, Heidelberg : Springer-Verlag, 1987
シリーズ名: Lecture Notes in Computer Science ; 250
オンライン: http://dx.doi.org/10.1007/BFb0014968