JUKKA LINDGREN, WILLIAM H. GEHRMANN, GARY W. FERGUSON & JOHN E. PINDER. 2008. Measuring Effective Vitamin D3-Producing Ultraviolet B Radiation Using Solartech™s Solarmeter® 6.4 Handheld, UVB Radiometer. Bulletin of the Chicago Herpetological Society 43.4. 57–62.
Purchased: 01/2008