Barbara A. Kitchenham Pearl Brereton Stephen Owen J. Butcher Clive Jefferies Length and readability of structured software engineering abstracts. 37-45 2008 2 IET Software 1 http://dx.doi.org/10.1049/iet-sen:20070044 db/journals/iee/iet-s2.html#KitchenhamBOBJ08