Reference

Open textbooks for higher-education subjects

Histories of English words and their earlier forms

Publication and authorship details for vascular-plant names

Peer-reviewed social-anthropology reference essays

A curated registry of biological and biomedical ontologies

Sheet music with editable source formats

Translations and research tools for Tibetan Buddhist texts

Read and compare constitutions by topic

View genomic data against genome assemblies

A scholarly multimedia reference to Swiss history

Taxonomic lookup for plants, animals, fungi and microbes

Linked records of London convicts in Britain and Australia

Connected biomedical terminologies for mapping concepts

Educational collections of historical source texts

Related English words for revising a draft

Oregon history and culture with primary-source companions

A multilingual encyclopedia with a language-aware search

A scholarly gazetteer of ancient places and spaces

Chemical structures, substances and bioassay information

Philosophy articles written by professional philosophers

Swedish-language reference about Finland

Controlled terminology for art and cultural-heritage research

Greek mythology profiles grounded in classical texts and art

Curated pathways with visualization and analysis tools