Blue–yellow dyschromatopsia in toluene-exposed workers - Axel Muttray; Volkmar Wolters; Dirk-Matthias Rose (International Archives of Occupational and Environmental Health, 2019)

Blue-yellow deficiency in workers exposed to low concentrations of organic solvents - Axel Muttray; Udo Wolff; Detlev Jung; Johannes Konietzko (International Archives of Occupational and Environmental Health, 1997)

Porphyrin studies in TCDD-exposed workers - Detlev Jung; Johannes Konietzko; Gertraud Reill-Konietzko; Axel Muttray; Herbert -Josef Zimmermann-Hölz; Manfred Doss; Hans Beck; Lutz Edler; Annette Kopp-Schneider (Archives of Toxicology, 1994)