Identification and registration
ISSN

Databases and indexing services
SCOPUS
SUMÁRIOS.ORG

Directories and indexes
DOAJ
ROAD
LATINDEX
MIAR
DIADORIM
MIGUILIM

Search engines, discovery tools, and academic catalogues
BASE
GOOGLE SCHOLAR
OPENALEX
SUDOC
OASISBR

Indicators and bibliometric evaluation
SCIMAGO