Paper  bibtex   

@online{blok_discounted_1997,
	title = {Discounted Least Squares Curve Fitting},
	url = {http://www.zoology.ubc.ca/~rikblok/wiki/doku.php?id=random_research:rik_s_notes:discounted_least_squares:start},
	shorttitle = {Discounted Least Squares},
	version = {1327},
	author = {Blok, Hendrik J. (Rik)},
	urldate = {2012-02-21},
	date = {1997-07-20},
	keywords = {Rik's work}
}