@misc{installation+of+photovoltaic+systems+in+existing+buildings,
    author = {Zieske, Nicolaus},
    title = {Installation of photovoltaic systems in existing buildings},
    journal = {Czasopismo Techniczne. Architektura},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2007},
    number = {R. 104, Z. 9, 4-A}
}