DFK resins and adhesives : (properties and application)1970 https://www.ester.ee/record=b1357352*est

TEA entsüklopeedia2010 https://www.ester.ee/record=b2607773*est

TEA entsüklopeedia2011 https://www.ester.ee/record=b2666688*est

TEA entsüklopeedia2011 https://www.ester.ee/record=b2712813*est

Смолы и клеи ДФК : (свойства и применение)1970 https://www.ester.ee/record=b1357355*est