@misc{Rybak_Jan_Igor_Spatial_1972,
 author={Rybak, Jan Igor},
 editor={Polish Academy of Sciences, Institute of Ecology},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 howpublished={online},
 year={1972},
 language={eng},
 abstract={The changes in time and differentiation within the pelagial of Mikolajskie Lake (Masurian Lakeland) of some environmental factors were measured. The following were analysed: visibility, tempemture, oxygen, pH, iron, magnesium, calcium, phosphate, potassium, sodium, nitrogen, conductivity.},
 type={Text},
 title={Spatial and time changes of some environmental factors in the pelagial of Mikołajskie Lake},
 URL={http://rcin.org.pl/miiz/Content/72228/PDF/WA058_86532_P2840-T20_Eko-Pol-A-Nr-40.pdf},
 volume={20},
 number={40},
 journal={Ekologia Polska},
 publisher={Państwowe Wydawnictwo Naukowe},
 keywords={pelagic zone, Poland, Mikołajskie Lake},
}