The tiptoi digital voice pen and an example of an interactive paper by

PDF) Smartpen Applications for Meeting the Needs of Students With

Interactive audio-tactile map prototype composed of a multi-touch

Correctness of evaluation answers sorted by participants

Ravensburger 00801 tiptoi educational toy: : Toys

tiptoi Ravensburger Set: WWW Primary School Dictionary English +

Interactive treasure hunt with Tip-toi

Gadget Fanatics, Take Note - The New York Times

PDF) Tzakosta, M., Ch. Derzekou, A. Aleksopoulou, G. Padeloglou