INDEXING / ABSTRACTING

ASOS Index, 

BASE (Bielefeld Academic Search Engine)

CROSSREF

Dimensions

Google Scholar, 

Ideal online , 

Index Copernicus, 

OpenAIRE

OUCI - The Open Ukrainian Citation Index

Paperity

ROAD (Directory Open Access Scholarly Resources), 

Sciencegate

Scilit

Worldcat

World Catalogue of Scientific Journals ,