At least three referees are called upon to review submitted papers. Although the page numbers allocated to issues have been increased by 30 percent, current paper submission rates are significantly higher than we are able to publish. This limits the number of accepted papers and entails the adoption of a high quality threshold for accepted papers. There is no page charge for papers accepted for publication.
Prior volumes are free.
Institutional subscribers receive the hardcopy version as well as free online access either with an ID or with an IP range. ID access is allocated automatically with institutional subscriptions. As some of the papers contain high resolution screen dumps which are reproduced in higher quality in the hardcopy version, the online version has reduced resolution in order to optimize downloading times. CD-ROMs of journal issues are available on request with high resolution images. Complete volumes on CD-ROM will be made available as of Volume 17.