Tynynyka, L. N., Semenchenko, A. Y., Mamontova, A. V., Synchikova, O. P., Shinder, A. V., & Sandomirsky, B. P. (2005). Protein-peptide composition of aqueous-saline extract from Rana Ridibunda frog unfertilized eggs depending on ways of its procurement. Problems of Cryobiology and Cryomedicine, 15(3), 311. Retrieved from http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1117