Russell, A D <br/><br/>
Challenge testing: principles and practice.  [electronic resource] 

 -  International journal of cosmetic science  Jun 2003 
 - 147-53 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1468-2494 
<br/><br/><label>Standard No.: </label>10.1046/j.1467-2494.2003.00179.x  doi