Page and fragment-level identifiers. In contrast to work-level identifiers (Fig. 3), we can use identifiers for pages or parts of pages.

 
  Part of: Page R (2023) Ten years and a million links: building a global taxonomic library connecting persistent identifiers for names, publications and people. Biodiversity Data Journal 11: e107914. https://doi.org/10.3897/BDJ.11.e107914