@misc{simplified+methods+for+the+determination+of+hydrogen+sulphide+acid+in+sediment+contaminated+by+mining+activities,
    author = {Parvinen, Pekka i Wieczorek-Ciurowa, Krystyna},
    title = {Simplified methods for the determination of hydrogen sulphide acid in sediment contaminated by mining activities},
    journal = {Technical Transactions},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2014},
    number = {Y. 111, iss. 1-Ch}
}