1. Pietruszko SM. Renewable energy in Poland—perspective for the new millennium. Renewable energy. WREC 2000. Elsevier Ltd, p. 1530–5.
2. Pietruszko SM. Introduction of photovoltaics in Poland. In: Proc. of the 16th European Photovoltaic Conference and Exhibition. Glasgow, 01-05.05.2000. London: James & James; p. 2962–6.
3. Pietruszko SM, Warszawik A. PV system for lighting of pedestrian crossing, In: Proc. of the 12th International Photovoltaic Science and Engineering Conference, Cheju, Korea, 11–15 June 2001. p. 411–3.
4. Pietruszko SM, Gradzki M. Photovoltaic system on school connected to electrical grid in the municipality Warsaw-Wawer. In: 17th European Photovoltaic Conference and Exhibition, Monachium, 22–26.10.2001, to be published.