Complete solar systems of output equipped with 230V 50HZ DC/AC inverters / Wojciech Grzesiak, Jerzy Początek, Krzysztof Witek, Krzysztof Wietrzny, Jan KOPROWSKI // W: IMAPS'2003 : 27-th international conference and exhibition IMAPS [International Microelectronics and Packaging Society]-Poland 2003 : 16–19 September, 2003 Podlesice–Gliwice, Poland : proceedings / eds. Maria Drelichowska [et al.] ; IMAPS. Poland-Chapter. — [Gliwice : Silesian University of Technology], [2003]. — S. 162–164. — Bibliogr. s. 164, Abstr.

Photovoltaic systems as the clean energy source for the present and for to-morrow / Wojciech Grzesiak, Michał Cież, J. Początek, Wiesław Zaraska, Krzysztof Wietrzny, Jan KOPROWSKI // W: IMAPS'2003 : 27-th international conference and exhibition IMAPS [International Microelectronics and Packaging Society]-Poland 2003 : 16–19 September, 2003 Podlesice–Gliwice, Poland : proceedings / eds. Maria Drelichowska [et al.] ; IMAPS. Poland-Chapter. — [Gliwice : Silesian University of Technology], [2003]. — S. 303–311. — Bibliogr. s. 311