@article{nikitina_reshetnyak_svetlova_mchedlov-petrossyan_2011,  title={Protolytic properties of dyes embedded in gelatin films},  volume={22},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532011000500007},  DOI={10.1590/S0103-50532011000500007},  number={5},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Nikitina, Nataliya A and Reshetnyak, Elena A and Svetlova, Nataliya V and Mchedlov-Petrossyan, Nikolay O},  year={2011},  month={May},  pages={857–866} }