KEIDEL W. D. /red/ 542,535 COCHLEAR Cochlear implants in clinical use : /papers presented at the Symposium on Artificial Auditory Stimulation, held in autumm 1982 in Erlangen, FRG. Companion v. t: Artificial auditory stimulation theories/ vol- ed- W. D. Keidel and P. Finkenzeller. — Basel /etc/ : S. Karger, 1984. — VII, [1], 176 s. ; 25 cm (Advances in Audiology ; vol. 2) ISBN 3-8055-3721-2