Abstract
The paper presents a comparative research of INSPEC, COMPENDEX and JICST-E databases as information sources for Japanese documents in engineering. Six search topics, representing the most advanced engineering fields in Japan are used in this study. The 1977 references retrieved from the three databases are analyzed for contribution to each database and duplication of references of journal articles. Also the speed of bringing online the references of Japanese scientific and technical documents in engineering is compared. This study proves that JICST-E is a significant source of Japanese information in engineering and in order to obtain more complete results, a multi-file searching including JICST-E is recommended.