ETP publishes all its journals in full open access, meaning unlimited use and reuse of articles, in addition to giving credit to the authors. All of our articles are published under a Creative Commons (CC BY-NC-ND 4.0) license.

Authors should pay a flat article processing charge for an accepted manuscript regardless of the length of the paper. Article Processing Charges are required after a manuscript has been accepted for publication. Please note that the option to process an advance payment remains but does not guarantee acceptance of manuscripts. The journal will not issue refunds of any kind after the acceptance of the manuscript.

For reviewers, we will provide a discount voucher for each qualified review, and the voucher is effective within one year. The voucher is only applied for submissions in this journal, and the authors may use one or several vouchers for one submission.

Journal Specific APCs