@misc{25+kv+ac+railway+line+within+3+kv+dc+infrastructure+in+poland+analysis+of+operating+conditions,
    author = {Szeląg, Adam},
    title = {25 kV AC railway line within 3 kV DC infrastructure in Poland – analysis of operating conditions},
    journal = {Technical Transactions},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2016},
    number = {Y. 113, iss. 1-E}
}