Knave B, Widebäck PG (eds.): Work with display units 86 : selected papers from the International Scientific Conference on Work With Display Units, Stockholm, Sweden, May 12-15, 1986. Elsevier, Amsterdam, North-Holland; 135-140; ISBN 978-0-444-70171-8
2007,
Ning W, Xu SJ, Chiang H, Xu ZP, Zhou SY, Yang W, Luo JH