Aquatic vegetation as an indicator of littoral habitats and various stages of lake aging in north-eastern PolandStanisław Kłosowski, Ewa Jabłońska and Marcin SzańkowskiAnn. Limnol. - Int. J. Lim., 47 3 (2011) 281-295DOI: https://doi.org/10.1051/limn/2011008