Kim Cao-Van, and Bernard De Baets. Theory and Applications of Relational Structures as Knowledge Instruments, volume 2929 of Lecture Notes in Computer Science, page 107-123. Springer, (2003)
Kim Cao-Van, and Bernard De Baets. Theory and Applications of Relational Structures as Knowledge Instruments, volume 2929 of Lecture Notes in Computer Science, page 107-123. Springer, (2003)