It still costs you nothing to use, but the author retains copyright to the package.

However, other authors have retained the traditional broader classification.

The authors retained this synonymy in their 2001 work, "Nepenthaceae".

Except for the ebook format, as just discussed, the author retains all other rights.

The authors retain full copyright to their content and may publish it elsewhere under different licenses.

Since 2004, authors have retained copyright of their material, licensing their contributions to the journal.

The authors often retain anonymity to avoid affecting their ongoing cases.

Chinese authors retain a number of species in Hepialus.

As a result authors retain copyright privileges and are free to publish their work elsewhere.

As with Lulu.com, authors retain all rights to uploaded work.