Literatur
- Gumiński, R., 1951: Meteorology and Climatology for Agriculturists (in Polish).
- Leopold, M., 1969: An Attempt to Evaluate the Economic State of Exploited Polish Lakes. (Polish, Engl, and Russ. summ.). — Rocz. Nauk. Roln., 91-H-L, 41–58.
- Patalas, K., 1960: The Method of Classification of Primary Productivity of a Lake by Point System. Applied to the Lakes of Wegorzewo District. (Polish, Engl, and Russ. summ.). — Rocz. Nauk Roln. 77-B-l, 299–324.
- Vasnetsov, V. V., 1953: Patterns of fish Growth. — In: Ocherki po Obshchim Voprosam Ichtiologii. Akademiya Nauk Press, Moscow (in Russian).