Springer
Lecture Notes in Computer Science
Correct System Design, Recent Insight and Advances
Networks and Optimization

Apt, K., & Schaerf, A. (1999). The Alma project, or how first-order logic can help us in imperative programming. In Proceeding
Correct System Design, Recent Insight and Advances, (to Hans Langmaack on the occasion of his retirement from his professorship at the University of Kiel) (pp. 89–113). Springer.