1. Category theory for computing science;Barr,1990
2. Integration of specification languages using viewpoints;Bujorianu,2004
3. Towards correspondence carrying specifications;Bujorianu,2004
4. Unique factorisation lifting functors and categories of linearly-controlled processes;Bunge;Mathematical Structures in Computer Science,2000
5. Fibred models of processes;Fiore,1956