How were the 1848 Revolutions, middle class driven?

Question

How were the revolutions in 1848 driven by the middle class, more specifically in Austria?

If you have a really good source, please include it so I can use them

thx

Answer 1

If its a good source or not you will have to judge.

http://www.onwar.com/aced/data/hotel/hungary1848.htm
http://www.zum.de/whkmla/region/germany/au1848dom.html
http://www.age-of-the-sage.org/history/1848/revolution_of_1848.html
http://www.germanheritage.com/Essays/1848/the_revolutions_of_1848.html