1. Physical Causes: Heat, Cold, and Other Atmospheric Factors;Kanerva’s Occupational Dermatology;2019-11-06
2. Forestry Workers;Kanerva’s Occupational Dermatology;2019-11-06
3. Titanium;Hamilton & Hardy's Industrial Toxicology;2015-03-20
4. Furfural [MAK Value Documentation, 2002];The MAK-Collection for Occupational Health and Safety;2012-01-31
5. 2-Furylmethanal [MAK Value Documentation in German language, 1998];The MAK-Collection for Occupational Health and Safety;2012-01-31