Wlodarczyk, R., P. Minias, K. Kacmarek, T. Janiszewski, och A. Kleszcz. ”Different Migration Strategies Used by Two Inland Wader Species During Autumn Migration, Case of Wood Sandpiper Tringa Glareola and Common Snipe Gallinago Gallinago”. Ornis Fennica, vol. 84, nr 3, september 2007, s. 119–130, https://ornisfennica.journal.fi/article/view/133688.