@misc{renewable+energy+sources+vs+an+air+quality+improvement+in+urbanized+areas+the+metropolitan+area+of+krakow+case,
    author = {Ciepiela, Agnieszka and Blazy, Rafał and Błachut, Jakub and Łabuz, Rita and Papież, Renata},
    title = {Renewable energy sources vs. an air quality improvement in urbanized areas - the Metropolitan Area of Kraków case},
    journal = { Frontiers Energy Research},
    date = {2021},
    number = {vol. 9}
}