= References and resources =
* Gill, R.D. & Johansen, S. (1990) A survey of product-integration with a view toward application in survival analysis, ''The Annals of Statistics'', Vol. 18, pp.1501-1555.
* Richard Gill's [http://www.math.uu.nl/people/gill website] contains links to various articles articles on product integration
[[Category:Math]]