It is assigned after the article has been accepted for publication and persists throughout the lifetime of the article. When using an Academic Press article in a reference section, it is important to include the article's DOI in the reference as volume and page information is not always available for articles published online. The References section, below, shows samples of DOI included in references. Notes Notes should be numbered sequentially through the paper. References should be laid out as illustrated below.
Manuscripts Follow conventional styles or that required by the relevant archival authority.
Subsequent references to previously cited work Use ibid., op. cit. They should be simple, clear and possess adequate keys and scales where appropriate. Initially, good quality photocopies of each illustration for each typescript should be submitted. These should be reproduced at roughly the size the author would like them to appear. Photocopies should be clearly numbered using the notation 'Figure' followed by an Arabic numeral.