Kevin G. Hare, New techniques for bounds on the total number of prime factors of an odd perfect number, Math.
kˈevin dʒˈi. hˈare, (en)njˈuː(it) teknˈikwes fˈor bˈoʊnds ˈon tˈe tˈotal nʊmbˈɛr ˈof prˈime faktˈɔrs ˈof ˈan ˈɔdː pˈɛrfekt nʊmbˈɛr, mˈat.