Penrose tiles to trapdoor ciphers : --and the return of Dr. Matrix /

• Main Author: Gardner, Martin, 1914-2010 (συγγραφέας)
• Format: Book
• Language: English
• Published: Washington, D.C. : Mathematical Association of America, c1997
• Edition: Rev. ed.
• Series: MAA spectrum
• Subjects: Μαθηματικά ψυχαγωγίας