Similar to Contextual_Query_Language

Contextual Query Language

Biodiversity Heritage Library

DBLP

Internet Speculative Fiction Database

Semantic Scholar

NACSIS-CAT record ID

OpenURL

OpenURL knowledge base

Digital curation

MultiDimensional eXpressions

Relational algebra

Relational calculus

Query

Integrated Data Store

11 (number)

13 (number)

BioOne

CINAHL

CNKI

Embase

Google Scholar

HAL (open archive)

Library Genesis

PubMed