“…Some have also evaluated web-scale discovery against subject databases in the context of finding information in a particular discipline, often asking if the specificity of a subject database offered advantages over multi-subject databases or web-scale discovery. In terms of coverage of relevant literature, several studies have found that Google Scholar exceeds the standard subject databases in fields such as communication (Tyler et al, 2005(Tyler et al, , 2008, geography (S ¸tirbu et al, 2015), and history (Pearce, 2019), whereas subject databases had superior coverage for archaeology (Tyler et al, 2009). Many of these studies assume a correlation between extent of coverage and usefulness, whereas others appreciate that certain search features might make the subject databases preferable in chemistry (Levine-Clark and Kraus, 2007), health sciences (Bramer et al, 2013), social sciences (Dahlen and Hanson, 2017), or specific purposes such as systematic reviews (Bates et al, 2017;Gusenbauer and Haddaway, 2020).…”