The Optimization Strategy for Query Evaluation in RDB/V1 - Akifumi Makinouchi; Masayoshi Tezuka; Hajime Kitakami; S. Adachi (VLDB, 1981)

An Enhanced Relational Data Base System for Planning and Management Information Processing (PLANNER). - Akifumi Makinouchi; Masayoshi Tezuka; Yasunori Kanda (IEEE Database Eng. Bull., 1983)