All articles published in this journal have been included by some world-class database: Google Scholar, National Library of Singapore.

Three article storage methods are encouraged:

1. Authors are encouraged to save self- final versions of their published articles in institutional repositories (such as those listed in the Directory of Open Access Repositories) through self-archiving.

2. Portico will archive all articles published in the journal for long-term digital preservation.

3. The final PDF version published can be acquired on the website by authors.