Szukana fraza: [Bibliografia = "Volchak A., Choiński A., Kirviel I., Parfomuk S., 2017, Spectral analysis of water level fluctuations in Belarusian and Polish lakes, Bulletin of Geography. Physical Geography Series, 12, s. 51\-58. https\:\/\/doi.org\/10.1515\/bgeo\-2017\-0005"]