Search results

An open bibliographic database built by contributors

Open scholarly citation and bibliographic data

Language classification linked to bibliographic reference

Search book and author records in batches and return work, edition, and cover identifiers.

Query a scholarly research graph of works, authors, sources, institutions, and related entities over a REST API.

Ask a research question and get an answer grounded in open science papers, with citations.

Scholarly search with author, publication and date controls

Astronomical objects connected to literature and identifiers

Find books and other items held by libraries

Economics literature discovery through RePEc

Full-text book search through a large book index

A curated index of freely readable online books

Generate reference documentation from a Python project's modules and docstrings.

Mobile reference boards with frame-by-frame GIF viewing

Reference-image boards that stay beside a drawing workspace

Browser painting with a reference overlay and colour sampling

Find used, rare and collectible books from sellers

A portable canvas for arranging visual references

Education-research discovery with publication filters

A practical reference of interface-design principles and effects

A search across published encyclopedias and reference books

Windows painting with linked reference viewing and process replay

Query and deliver institutional pricing and reference data

Balance shots, refine a reference match and return the grade to your edit.