https://commons.ru.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 Theoretical aspects of the reaction of zirconium compunds and vegetable tannins with the chromium-collagen complex https://commons.ru.ac.za/vital/access/manager/Repository/vital:4512 Wed 12 May 2021 19:40:46 SAST ]]> A preliminary investigation of the structure of green wattle tannin (acacia decurrens willd) https://commons.ru.ac.za/vital/access/manager/Repository/vital:4475 Wed 12 May 2021 16:25:05 SAST ]]> The chemistry of the wattle tannins https://commons.ru.ac.za/vital/access/manager/Repository/vital:4492 Thu 13 May 2021 00:06:57 SAST ]]>