Green, Penelope (19 de mayo de 2026). «Greg Hyman, Co-Creator of Tickle Me Elmo, Dies at 78». The New York Times(en inglés). Consultado el 19 de mayo de 2026. «The toy that he and Ron Dubren designed for Tyco not only giggled and spoke — 'That tickles!' — but vibrated when tickled three times.... In the early 1990s, Mr. Hyman was a veteran toy inventor whose longtime business partner, Larry Greenberg, had recently died. The pair had been known for their electronic innovations, including a talking robot named Alphie».
