@article{Firth:2000:JSSOBK:v05i04,
author = "David Firth",
title = "Quasi-variances in Xlisp-Stat and on the web",
journal = "Journal of Statistical Software",
volume = "5",
number = "4",
pages = "1--13",
day = "26",
month = "4",
year = "2000",
CODEN = "JSSOBK",
ISSN = "1548-7660",
bibdate = "2000-04-26",
URL = "http://www.jstatsoft.org/v05/i04",
accepted = "2000-04-26",
acknowledgement = "",
keywords = "",
submitted = "1999-09-09",
}