ŁĘTOWSKI, S., and A. SIKORSKA. “A Method for Measuring Photopyroelectric Spectra of Dyes in a Polymer Pyroelectric Matrix”. Archives of Acoustics 17, no. 1 (May 1, 2014): 173–176. Accessed January 17, 2026. https://acoustics.ippt.gov.pl/index.php/aa/article/view/1180.