The narrative storyboard: telling a story about use and context over time.
Greenberg, S., Carpendale, S., Marquardt, N. and Buxton, B. 2012. interactions 19(1), 64-69, ACM Press. January 2012)

Low vs. high-fidelity prototyping debate.
Rudd, J., Stern, K. and Isensee, S. interactions 3(1), 76-85, ACM Press. January 1996.

Pencils before pixels: a primer in hand-generated sketching.
Baskinger, M., interactions 15(2), 28-36, ACM Press. March 2008.

Prototyping for tiny fingers.
Rettig, M., Communications of the ACM 37(4), ACM Press. 1994.

Chapter 4.8 Prototyping. (Extract).
Nielsen, J. (1993) Usability Engineering, Academic Press