Description : Large bibliographic databases highlight tangible and symbolic differences regarding the standards of quality attached to them, underlining diverging incentive structures for small and large academic publishers. To assess the academic differences associated with these publishers, we explore bibliometric data for small publishers’ journals from the Web of Science and Scopus. We then discuss the visibility and impact of highly cited literature in small open access journals in relation to their cited references from indexed and non-indexed sources. We find that non-indexed references are consistently relevant for highly cited literature, yet the share of items that obtain high citation counts is rather small and uneven across disciplines. In general, we identify regional and linguistic specificities, whilst there are some observable thematic
differences compared to more mainstream publications. In particular, we underline that a healthy bibliodiversity can, depending on language or regional contexts, shape epistemic and
scientific practices and narratives