Dr Ecco′s Cyberpuzzles – 36 Puzzles for Hackers & Other Mathematical Detectives Autor Dennis E Shasha 19 feb 2004 Paperback Preț: 121.79 lei 3-5 săpt.
Dr. Eccos Profi-Rätsel für Freaks, Cracks und andere Fortgeschrittene Autor Dennis E Shasha 22 iun 2005 Paperback Preț: 133.80 lei Indisponibil temporar
Puzzling Adventures – Tales of Strategy, Logic and Mathematical Skill Autor Dennis E Shasha 14 mar 2005 Paperback Preț: 93.43 lei 4-6 săpt.