1. ACGIH (American Conference of Governmental Industrial Hygienists) 2001 Beryllium and Compounds. TLV® Chemical Substances 7th Edition, Documenlation ACGIH® ACGIH® Cincinnati
2. ACGIH (American Conference of Governmental Industrial Hygienists) 2003 Beryllium and Compounds. TLV® Chemical Substances Draft, Documentation ACGIH® ACGIH® Cincinnati
3. Urinary beryllium - a suitable tool for assessing occupational and environmental beryllium exposure?;Apostoli;Int Arch Occup Environ Health,2001