Albert, 1809: The missing volcano, VolcanoCafe blog, 25 January 2016 (not peer reviewed)
How it connects
This book or paper is where we read about
Hobbyist idea: Tambo Quemado in the Bolivian Andes was the 1808 volcano
This book or paper is where we read about
Hobbyist idea: Putana in Chile was one of several eruptions behind the 1809 signal