Electrocatalysis of oxygen reduction on multi-walled carbon nanotube supported copper and manganese phthalocyanines in alkaline mediaKaare, Kätlin; Kruusenberg, Ivar; Merisalu, Maido; Matisen, Leonard; Sammelselg, Väino; Tammeveski, KaidoJournal of solid state electrochemistry2016 / p. 921–929 : ill https://doi.org/10.1007/s10008-015-2990-9