相关费用：选择性费用 ︾It is the publisher's desire to offer the Journal at the lowest possible subscription rates. This requires us to tap various funding resources - page and offprint charges play a non-trivial role in the Journal's income. This notwithstanding, payment is voluntary—it is not a condition for publication. Page charges are $15 per printed page. Payment of some or all of the page charges is encouraged. When neither institutional nor individual grants will pay for any portion of the page charges, authors are asked whether they can help defray the cost of the offprints: these are assessed at $2.50 per printed page.
