diff -r 39c6b93718f0 -r 371acb50643d cws/cw03.tex
--- a/cws/cw03.tex	Fri Nov 24 01:26:01 2017 +0000
+++ b/cws/cw03.tex	Fri Nov 24 03:10:23 2017 +0000
@@ -517,7 +517,11 @@
   given brainfu** program and memory, and the program counter and memory counter
   set to~$0$. Like \texttt{run} it returns the memory after the execution
   of the program finishes. You can test your brainf**k interpreter with the
-  Sierpinski triangle or the Hello world programs.\\\mbox{}\hfill[2 Marks]
+  Sierpinski triangle or the Hello world programs or have a look at
+
+  \begin{center}
+  \url{https://esolangs.org/wiki/Brainfuck}
+  \end{center}\hfill[2 Marks]
   
   \begin{figure}[p]
   \begin{center}