J. M. Alexander,International Machine Tool Design and Research Conference.International Machine Tool Design and Research Conference (21st : 1980 : Swansea)：proceedings of the twenty-first international machine tool design and research conference.Univ. College of Swansea,1981.
International Machine Tool Design and Research Conference (21st : 1980 : Swansea)：proceedings of the twenty-first international machine tool design and research conference
J. M. Alexander,International Machine Tool Design and Research Conference.Univ. College of Swansea,1981.
