MAREK, A., L. KAPRÁLKOVÁ, P. SCHMIDT, J. PFLEGER,
Josef HUMLÍČEK, J. POSPÍŠIL and J. PILAŘ. Spatial resolution of degradation in stabilized polystyrene and polypropylene plaques exposed to accelerated photodegradation or heat aging.
Polymer Degradation and Stability. Elsevier Ltd., 2006, vol. 91, No 2, p. 444-458. ISSN 0141-3910.