Chaudhuri, Shiva Algorithms and Complexity, MPI for Informatics, Max Planck Society;
Zaroliagis, Christos Algorithms and Complexity, MPI for Informatics, Max Planck Society;
https://rdcu.be/dv0vg (Publisher version)
Chaudhuri, S., & Zaroliagis, C. (1995). Shortest Path Queries in Digraphs of Small Treewidth. In Z. Fülöp, & F. Gecseg (Eds.), Automata, Languages, and Programming (pp. 244-255). Berlin: Springer.