Interesting article from ChanLin Lih-Juan  who compared university students’ use of e-book features for both academic and leisure reading, and found that e-book features were most valued for academic reading. See Lih-Juan, ChanLin (2013) “Reading strategy and the need of e‐book features”, The Electronic Library, Vol. 31 Issue: 3, pp.329-344, doi: 10.1108/EL-08-2011-0127.