1. xsl:apply-templates mode="copyref"/>;Kissa E.,1994
2. xsl:apply-templates mode="copyref"/>;Schlachter I.,1998
3. Surfactants in Consumer Products
4. xsl:apply-templates mode="copyref"/>;Stache H.W.;,1996
5. xsl:apply-templates mode="copyref"/>;Cross J.,1998