@misc{Hanna_Luhtala_Annual,
 author={Hanna Luhtala and Tolvanen, Harri and Risto Kalliola},
 publisher={Komitet Badań Morza PAN},
 publisher={Instytut Oceanologii PAN},
 title={Annual spatio-temporal variation of the euphotic depth in the SW-Finnish archipelago, Baltic Sea},
}