Who studied a mummy that was found in September of 1991?
Klaus Oeggl: Klaus Oeggl (born 1955 in Innsbruck) is an Austrian botanist, and deals with palaeoecology and archaeobotany. Ötzi:  The mummy was found in September 1991 in the Ötztal Alps, hence the nickname "Ötzi", near Similaun mountain and Hauslabjoch on the border between Austria and Italy.
i don't know