+ <li>«<a href="">A New Kind of Science</a>» av Stephen Wolfram .</li>
+
+ <li>«<a href="">Surreal Numbers</a>» av Donald Knuth.</li>
+
+ <li>«<a href="">The Book of Numbers</a>» av John H. Conway
+ og Richard K. Guy</li>
+
+ <li>«<a href="https://en.wikipedia.org/wiki/Winning_Ways_for_your_Mathematical_Plays">Winning
+ Ways for your Mathematical Plays</a>» av Elwyn
+ R. Berlekamp, John H. Conway, og Richard K. Guy</li>
+
+ <li>«<a href="https://store.doverpublications.com/048649098x.html">The
+ Recursive Universe - Cosmic Complexity and the Limits of
+ Scientific Knowledge</a>» av William Poundstone</li>
+