Further developments in CIS monograin layer solar cells technologyAltosaar, Mare; Danilson, Mati; Kauk, Marit; Krustok, Jüri; Mellikov, Enn; Raudoja, Jaan; Timmo, Kristi; Varema, TiitSolar energy materials and solar cells2005 / p. 25-32 : ill