@article{Williamson1988,
	title = {The inverse and determinant of a 2 {\texttimes} 2 uniformly distributed
	random matrix},
	author = {R. C. Williamson and T. Downs},
	journal = {Statistics \& Probability Letters},
	month = {Sep},
	number = {2},
	pages = {167--170},
	url = {http://www.sciencedirect.com/science/article/B6V1D-47N62VK-5K/1/f52e78185e370438b0e32947678fed62},
	volume = {7},
	year = {1988},
	biburl = {http://www.bibsonomy.org/bibtex/26c1d4eed3a445196c20d08e38476d878/smicha},
	keywords = {determinant random }
}