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A versioned taxonomic catalogue of spiders

A historical London map linked to texts and reference records

Concise biographies of figures in Welsh national life

A wide subject reference to West Virginia

A collaboratively written mathematics encyclopedia

A subject-organized reference to Alabama

Regional history connected to Philadelphia's present

A global bird classification with English naming guidelines

Discover linked publications, datasets and research software

Astronomical objects connected to literature and identifiers

A connected library of Jewish texts and commentaries

Quran reading and listening organized by surah and topic

Cleveland historical articles with a multimedia search

Australian scientific history connected to archival sources

Convention case-law knowledge by article and theme

Taxonomic lookup for living reptile species

Treaty records and depositary information

Visual-art history through artists, movements and ideas

Research explanations paired with charts and data explorers

Educational summaries on anesthesia and perioperative subjects

Radiology explanations organized around imaging topics

Nomenclatural reference for prokaryotic names

Taxonomic and distribution information about algae

Articles, maps and timelines on Jewish history and culture