Functional Structures for Parsing Dependency Constraints. - Harri Jäppinen; Aarno Lehtola; K. Valkonen (COLING, 1986)

Declarative Nodel For Dependency Parsing - A View Into Blackboard Methodology. - K. Valkonen; Harri Jäppinen; Aarno Lehtola; Matti Ylilammi (EACL, 1987)

Blackboard-based Dependency Parsing. - K. Valkonen; Harri Jäppinen; Aarno Lehtola (IJCAI, 1987)

Predication Graphs as Canonical Representation of Query Sentences. - Timo Honkela; Aarno Lehtola; K. Valkonen (NODALIDA, 1988)