The changes in the optical properties of Ehrlich carcinoma cells treated with hematoporphyrin derivative and lightTšekulajev, Vladimir; Ševtšuk, Igor; Tšekulajeva, Ludmilla23rd Estonian Chemistry Days : abstracts of scientific conference1997 / p. 24 https://www.ester.ee/record=b1059312*est

On the contamination of Estonian environment by nitroarenesTšekulajev, Vladimir; Ševtšuk, Igor; Tšekulajeva, Ludmilla23rd Estonian Chemistry Days : abstracts of scientific conference1997 / p. 25 https://www.ester.ee/record=b1059312*est