Indexing and Abstracting

 CROSSREF

Google Scholar

 OPENALEX

CAS (Chemical Abstracts Service) databases, a division of the American Chemical Society (ACS).

J-Gate

Open Ukrainian Citation Index (OUCI)

Scilit (MDPI)

Semantic Scholar  

Letpup

ScholarMate

Dimension

EuroPub Database 

Google Scholar

Researchgate