Moskaeva, E., Ostrovskiy, K., Shekhovtsov, S. and Mchedlov-Petrossyan, N. 2021. Transmittance of electronic effects in the fluorescein molecule: nitro and amino groups in the phthalic acid residue. Kharkiv University Bulletin. Chemical Series. 36 (Feb. 2021), 24-32. DOI:https://doi.org/10.26565/2220-637X-2021-36-05.