1. Ciba Chimassorb 944, Nov. 1999.
2. Ciba Tinuvin 320, Oct. 1997.
3. Ciba Irganox 1010, Oct. 1999.
4. ASTM G178 – 09 Standard Practice for Determining the Activation Spectrum of a Material (Wavelength Sensitivity to an Exposure Source) Using the Sharp Cut-On Filter or Spectrographic Technique.
5. Handbook of Material Weathering;Wypych,2013