Dimond, Tom (1957-12-01), „Devices for reading handwritten characters”, Papers and discussions presented at the December 9-13, 1957, eastern joint computer conference: Computers with deadlines to meet on XX - IRE-ACM-AIEE '57 (Eastern), IRE-ACM-AIEE '57 (Eastern), Proceedings of Eastern Joint Computer Conference, стр. 232—237, ISBN9781450378628, S2CID17961928, doi:10.1145/1457720.1457765, Приступљено 2008-08-23
Dimond, Tom (1957-12-01), „Devices for reading handwritten characters”, Papers and discussions presented at the December 9-13, 1957, eastern joint computer conference: Computers with deadlines to meet on XX - IRE-ACM-AIEE '57 (Eastern), IRE-ACM-AIEE '57 (Eastern), Proceedings of Eastern Joint Computer Conference, стр. 232—237, ISBN9781450378628, S2CID17961928, doi:10.1145/1457720.1457765, Приступљено 2008-08-23
Dimond, Tom (1957-12-01), „Devices for reading handwritten characters”, Papers and discussions presented at the December 9-13, 1957, eastern joint computer conference: Computers with deadlines to meet on XX - IRE-ACM-AIEE '57 (Eastern), IRE-ACM-AIEE '57 (Eastern), Proceedings of Eastern Joint Computer Conference, стр. 232—237, ISBN9781450378628, S2CID17961928, doi:10.1145/1457720.1457765, Приступљено 2008-08-23