1.
Die Optische Rauheitsmessung in der Qualit�tstechnik
by Ahlers, R.-J
ISBN: 9783540172420
List Price: $69.95
2.
Automated 3d and 2d Vision 21-24 June 1994, Frankfurt, Frg
by Ahlers, R.-J, Braggins, Don...
ISBN: 9780819415554
List Price: $85.00