@ARTICLE{Kołakowski_Edward_Seasonal_1987,
 author={Kołakowski, Edward},
 volume={vol. 8},
 number={No 2},
 journal={Polish Polar Research},
 pages={159-165},
 howpublished={online},
 year={1987},
 publisher={Polish Academy of Sciences},
 publisher={Committee on Polar Research},
 abstract={Changes in the amount of basic nitrogen fractions (total, protein and non-protein nitrogen) were studied in an annual cycle. Significant seasonal changes were noted, minima occurring in Antarctic winter and maxima during spring-summer season. These changes are due mainly to high fluctuations of water content in krill in the annual cycle.},
 type={Article},
 title={Seasonal changes in nitrogen fractions in the Antarctic krill (Euphausia superba Dana), Part 1. Basic nitrogen fractions},
 URL={http://www.czasopisma.pan.pl/Content/111371/PDF-MASTER/1987_2_159-166.pdf},
 keywords={Antarctic krill, chemical composition, nitrogen fractions},
}