IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Radiant energy density. Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN0-9678550-9-8. doi:10.1351/goldbook.R05040. Last update: 2012-08-19; version: 2.3.2. Navštíveno 2013-10-07.
iupac.org
goldbook.iupac.org
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Radiant energy density. Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN0-9678550-9-8. doi:10.1351/goldbook.R05040. Last update: 2012-08-19; version: 2.3.2. Navštíveno 2013-10-07.