Observations OrthoptérologiquesPublished in Bihang till Kongl. Svenska vetenskaps-akademiens handlingar, in 1875, in volume 3, issue 14, pages 1-43Genera Cimicidarum Europae disposuitPublished in Bihang till Kungliga Svenska Vetenskaps-Akademiens Handlingar, in 1875, in volume 3, pages 1-66
Genera Cimicidarum Europae disposuitPublished in Bihang till Kungliga Svenska Vetenskaps-Akademiens Handlingar, in 1875, in volume 3, pages 1-66