http://www.signlang-assessment.info/index.php/assessing-bsl-development-production-test-narrative-skills.html
http://www.staff.city.ac.uk/g.morgan/AB%20verbs.pdf
Abstract. Full text by subscription.
http://onlinelibrary.wiley.com/doi/10.1111/j.1469-7610.2009.02151.x/abstract
PDF – 6 pages
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.129.1087&rep=rep1&type=pdf
http://www.staff.city.ac.uk/g.morgan/sign%20li.pdf
http://www.staff.city.ac.uk/g.morgan/COGDEV291.pdf