1. Effect of dietary formalin on the health and testicular pathology of male Japanese quail (Coturnix japonica);Anwar;Veterinary and Human Toxicology,2001
2. ATSDR (Agency for Toxic Substances and Disease Registry) , 2010, online. Addendum to the Toxicological profile for formaldehyde. Available online: http://www.atsdr.cdc.gov/ToxProfiles/tp111.pdf.
3. The nitrosation of hexamethyltetramine and related compounds;Bachmann;Journal of the American Chemical Society,1951
4. BAuA (Bundesanstalt für Arbeitsschutz und Arbeitsmedizin) , 2008. Risk assessment. Methenamine. Available online: http://echa.europa.eu/documents/10162/6434698/orats_final_rar_methenamine_en.pdf.
5. Beck T and Gross F, 1973. Problems with regard to residues from the use of agents containing formaldehyde for silage making. Aus de Bayer. Landesanstalt für Bobenkultur und Pflanzenbau München und der Bayer. Landesanstalt für Tierzucht Grub, October–December 1973.