Published in Kungl. Svenska vetenskapsakademiens handlingar, in 1921, in volume 61, issue 9, pages 1-24

Created: 2015-03-20, modified: 2015-03-20

Published in Kungl. Svenska vetenskapsakademiens handlingar, in 1921, in volume 62, issue 3, pages 1-318

Created: 2018-02-20, modified: 2018-02-20