Nicola, Y. (2000). Creating microworlds for exploration of mathematical concepts. In Proceedings of International Conference on Mathematics / Science Education and Technology 2000 (pp. 315-320). Association for the Advancement of Computing in Education (AACE).
Watlington, D. (2011). Using iPod Touch and iPad Educational Apps in the Classroom. In M. Koehler & P. Mishra (Eds.), Proceedings of SITE 2011--Society for Information Technology & Teacher Education International Conference (pp. 3112-3114). Nashville, Tennessee, USA: Association for the Advancement of Computing in Education (AACE).