DIFFEY, B. L. A dosimeter for long wave ultraviolet radiation. British Fournal of Dermatology. 1977, 97, 127-130
DIFFEY, B. L. A new dosemeter for measurement of natural ultraviolet radiation in the study of photodermatoses and drug photosensitivity. Phys. Med. Biol. 1978, 23-2, 318-323