@article{Tutz1991,
	title = {Sequential models in categorical regression},
	author = {Gerhard Tutz},
	journal = {Computational Statistics \& Data Analysis},
	month = {May},
	number = {3},
	pages = {275--295},
	url = {http://www.sciencedirect.com/science/article/B6V8V-45GVWNP-15/1/883cc228d32922fa06b307358febd73a},
	volume = {11},
	year = {1991},
	biburl = {http://www.bibsonomy.org/bibtex/298ba350eb23cc759acb8162521bbd6ab/smicha},
	keywords = {Ordered categorical regression }
}