Letters 2 mm high are recommended. Please submit well-contrasted photographic prints, trimmed at right angles and preferably in the desired final size. Inscriptions should be about 3 mm high. The corresponding author of the contribution will receive directly from the typesetter a proof for correction after processing, which should be returned within 48 hours. Extensive corrections concerning the contents at the proof stage are not allowed.
Additional offprints are available at cost.
Please provide an address on the offprint order form to which the offprints should be sent. Please return the form promptly together with the corrected proof. If it is not returned within the set time, the order will not be considered or authors will be charged the higher rate for reprints.