The main research streams of PES: How to find and what are they?

Keywords: PES; research streams; HistCite™; LCS

authors have studied the main research streams of PES (Johst et al. 2002; Kosoy et al. 2007; Wunder et al. 2008; Engel et al. 2008). But specialized systematic research on the main streams’ recognition and compare has been scarce.