@misc{approximation+of+functions+of+two+variables+from+exponential+weight+spaces,
    author = {Herzog, Monika},
    title = {Approximation of functions of two variables from exponential weight spaces},
    journal = {Czasopismo Techniczne. Nauki Podstawowe},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2012},
    number = {R. 109, Z. 18, 1-NP}
}