My apologies for cross posting. Seems like every time I post a biblio, lots of folks start want to contribute even more! :-) This has more information than the version I posted earlier this month. Looks like the Gunflint Working Group thought my biblio was useful! https://www.academia.edu/15093188/Gunflints_An_Introductory_Bibliography_Aug_2015_2 or https://www.academia.edu/15072658/Gunflint_Newsletter_NS_6_includes_-_Pfeiffer_S.M.A._2015_Gunflints_An_introductory_bibliography_August_2015 -- Smoke Pfeiffer Eschew Obfuscation!