TY  - SER
AU  - Jonker,D.L.
AU  - Summers,R.S.
AU  - Summers,B.
TI  - Constitutive skin tone and sunscreen effects UV-induced skin darkening in negroid skin
KW  - SKIN
KW  - IF
Sources  - Cosmetics & Toiletries
Sources  - 109 (2) 1994 : 51-53, 56-58
ISSN  - 0361-4387
ER  -