%L acta85698 %P 166 %D 2024 %I University of Szeged %C Szeged %V 30 %A Poienar Maria %A BuČe Gabriel %A Svera Paula %K NanotechnolĂłgia - elĹadĂĄskivonat, ElektrokĂŠmia - elĹadĂĄskivonat %O Bibliogr.: 166. p. %T Synthesis, structural and optical properties of birnessite-type potassium manganese oxide materials : [abstract] %J Proceedings of the International Symposium on Analytical and Environmental Problems