Search results

English dictionary lookup with explicit usage guidance

A global bird classification with English naming guidelines

Discover peer-reviewed open-access books and publishers

Discover linked publications, datasets and research software

Astronomical objects connected to literature and identifiers

Physical constants linked to units and uncertainty guidance

Spectral lines and atomic energy-level reference data

Quran reading and listening organized by surah and topic

Minnesota historical entries filterable by topic and era

Oklahoma history searchable by name, era and topic

Cleveland historical articles with a multimedia search

Australian scientific history connected to archival sources

Taxonomic lookup for living reptile species

Treaty records and depositary information

Visual-art history through artists, movements and ideas

Manuscript images and metadata for medieval-music study

Research explanations paired with charts and data explorers

Reports and data on human-development measures

Population statistics organized through maps and tables

Educational summaries on anesthesia and perioperative subjects

Radiology explanations organized around imaging topics

Nomenclatural reference for prokaryotic names

A wide subject reference to West Virginia

Taxonomic and distribution information about algae