Bondar, M. V., O. V. Przhonska, O. D. Kachkovsky, A. Frazer, A. R. Morales, and K. D. Belfield. “New Fluorene-Based Fluorescent Probe With Efficient Two-Photon Absorption”. Ukrainian Journal of Physics 58, no. 8 (October 10, 2018): 748. Accessed April 19, 2024. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018347.