Cu2ZnSnSe4 films by selenization of Sn-Zn-Cu sequential filmsVolobujeva, Olga; Raudoja, Jaan; Mellikov, Enn; Grossberg, Maarja; Bereznev, Sergei; Traksmaa, RainerJournal of physics and chemistry of solids2009 / p. 567-570 : ill