Dimensions Dimensions is a large citation and abstract database that covers all subject areas and provides free access to more than 1.2 billion citations from research publications. Dimensions Plus, a fee-based service, brings together publications, datasets, grants, citations, alternative metrics, clinical trials, patents, and policy documents to deliver a platform that enables users to find and access the most relevant information faster, analyze the academic and broader outcomes of research, and gather insights to inform future strategy.