Edward F. Caldin:
Allen G. Debus: "Chemistry and Medical Debate: van Helmont to Boerhaave", Canton 2001 [PDF] (pp. 131-134)
John E. Lesch (ed.): "The German Chemical Industry in the Twentieth Century", Dordrecht 2000 [PDF] (pp. 135-137)
Maureen Christie: "The Ozone Layer: a Philosophy of Science Perspective", Cambridge 2001 [PDF] (pp. 138-140)
Julia Neus: "Aromatizität: Geschichte und mathematische Analyse eines fundamentalen chemischen Begriffs" (HYLE Studies No. 2)