@misc{an+unified+formula+for+deriving+the+molecular+composition+of+hydrocarbons,
    author = {Kozak, Adam i Kozak, Aleksander i Fryźlewicz-Kozak, Beata},
    title = {An unified formula for deriving the molecular composition of hydrocarbons},
    journal = {Technical Transactions},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2017},
    number = {Y. 114, vol. 3}
}