Cross Ref

Cross Ref
Crossref runs open infrastructure to link research objects, entities, and actions, creating a lasting and reusable scholarly record. As a not-for-profit with over 21,000 members in 160 countries, we drive metadata exchange and support nearly 2 billion monthly API queries, facilitating global research communication, for the benefit of society.
https://www.crossref.org/
Google Scholar

Google Scholar
Stand on the shoulders of giants
https://scholar.google.com/citations?user=UN0ItsQAAAAJ&hl=en&authuser=5
EBSCO

EBSCO
Your source for trusted research content. EBSCO is a leading provider of research databases, e-journal and e-package subscription management, book collection development and acquisition management, and a major provider of library technology, e-books and clinical decision solutions for universities, colleges, hospitals, corporations, government, K12 schools and public libraries worldwide.
https://research.ebsco.com/c/jz25kv/search/advanced/publications/AZ6D?autocorrect=y&selectedDb=a9hjnh