@book{
    sta:etal:20,
    author = "Staszkiewicz, Richard and Kurkliński, Igor and Majczyk, Adam and Milke, Mikołaj and Staszkiewicz, Igor and Szymańska, Małgorzata",
    url = "https://sklep.sgh.waw.pl/pl/products/teens4teens-statistic-2307.html",
    publisher = "Oficyna Wydawnicza SGH",
    title = "{Teens4Teens} Statistics with {C++}",
    year = "2020"
}