http://blog.oup.com/2013/11/correlation-is-not-causation/ http://global.oup.com/academic/product/causation-a-very-short-introduction-9780199684434;jsessionid=7729A325E6079FEA455388F363DA492C?cc=us&lang=en& - Pynchon-l / http://www.waste.org/mail/?list=pynchon-l