@misc{the+system+approach+as+a+means+of+restoration+activity+effectiveness,
    author = {Orlenko, Mykola},
    title = {The system approach as a means of restoration activity effectiveness},
    journal = {Wiadomości Konserwatorskie},
    address = {Warszawa},
    publisher = {Stowarzyszenie Konserwatorów Zabytków},
    date = {2019},
    number = {nr 57},
    ISSN = {0860-2395}
}