Fig. 3From: Nine years of development in establishing the journal as a learning and research hub in STEM education(Source: Springer) Note *: Accesses are defined as the number of times full text or PDF versions of articles are accessed directly from the journal website and SpringerLink. Downloads are defined as HTML, LookInside, PDF, and Epub clicks. Note that accesses do not include article downloads from mirror databases such as PubMed CentralNumber of full-text accesses* by calendar year Back to article page