• [Wiki] http://en.wikipedia.org/wiki/Calidris_maritima.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Calidris_maritima.
• [britishbirds] https://britishbirds.co.uk/wp-content/uploads/article_files/V76/V76_N12/V76_N12_P563_565_A146.pdf.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [PrinPres1991] Prinzinger, R., A.Preßmar, and Schleucher, E. (1991). Body temperature in birds. Comp. Biochem. Physiol., 99A(4):499--506. doi:10.1016/0300-9629(91)90122-S.
• [SummNico2004] Summers, R. W. and Nicol, M. (2004). Geographical variation in the breeding biology of the purple sandpiper Calidris maritima. Ibis, 146:303--313.