1. Sunscreen drug products for over-the-counter human drugs;Department of Health, Education and Welfare, Food and Drug Administration.;Fed Reg,1978
2. Experimentelle dermatologische Bewertung des Erythemschutzes von externen Sonnenschutzmitteln für die menschliche Haut;Deutsches Institut für Normung.;DIN,1985
3. Sunbather's application of sunscreen is probably inadequate to obtain the sun protection factor assigned to the preparation;Bech-Thomsen;Photodermatol Photoimmunol Photomed,1992
4. Sunscreen application and its importance for the sun protection factor;Stenberg;Arch Dermatol,1985