Here is the exact webpage I want to cite:
\bibitem{BrouwerSRG}A. Brouwer.
Strongly Regular Graphs table
http://www.win.tue.nl/~aeb/graphs/srg/srgtab1-50.html
\filbreak
Now, if I type this in and compile, the ~ does not show up at all. A professor recommended using $\sim$aeb and then later said he was mistaken to use that and instead I should use \~{}aeb. When I use $\sim$aeb, it seems to look correct, though perhaps the ~ is a little big. If I use \~{}aeb, it does not look right at all, it looks like a superscript ~. If I do \~aeb only, it puts the ~ above the a, so definitely not right.
I don't know much about bibliographies, but I'm just using \begin{thebibliography}{45} to start up my references, in case that matters.
Any ideas?
\urlfrom theurlor thehyperrefpackage. – Qrrbrbirlbel Dec 18 '12 at 21:41