Примери за световни вторични литературни източници, в които се реферират и индексират научни публикации

Access to Research for Development and Innovation (ARDI);

CNKI (China Knowledge Resource Integrated Database)

Contemporary Research Index;

CrossRef;

Current Index to Scholarly Journals;

Digital Journals Database;

Directory of Academic Resources;

DRJI (Directory of Research Journal Indexing);

EBSCO A-to-Z;

Elite Scientific Journals Archive;

CABI (Global Health Database) ;

GIF (Global Impact Factor);

Google Scholar;

ICI (Index Copernicus International);

J-Gate;

JIFACTOR;

JournalITOCs;

Medline;

MIAR (Information matrix for evaluating journals);

PubMed;

Recent Science Index;

Russian Science Citation Index;

Scholarly Journals Index;

Scientific Indexing Services;

SJIF (Scientific Journal Impact Factor);

Scientific Publications Index;

Scientific Resources Database;

ScopeMed;

SCOPUS;

SSOAR (Social Science Open Access Repository);

SPD (Standard Periodical Directory);