Bill Chalker's website: https://theozfiles.blogspot.com/Keynotes:Bill Chalker’s “UFO SubRosa” document:http://www.project1947.com/forum/bcoz1.htmRe 1969, Condon & Bluebook:http://theozfiles.blogspot.com/2020/09/1969-great-ufo-daze-of-oz.htmlAngel hair:http://theozfiles.blogspot.com/2015/05/ufos-and-angel-hair-in-search-of.htmlRepeatable phenomena - UFO flaps:http://theozfiles.blogspot.com/2021/05/experiencing-ufouap-hotzones-mount.htmlhttps://theozfiles.blogspot.com/search?q=PhilippeThe R...