Bessel function and equation properties (links)

Some useful links on Bessel functions, the equation, and their properties.  Later on down the road, I will try to post the properties and discuss the Bessel equation and the Bessel functions for archiving purposes.

For now, here are the links:

http://en.wikipedia.org/wiki/Bessel_function

http://www.efunda.com/math/bessel/bessel.cfm

http://mathworld.wolfram.com/BesselFunction.html

http://mathworld.wolfram.com/BesselDifferentialEquation.html