Demiaszkiewicz, A. W., Pyziel, A. M., & Lachowicz, J. (2008). Helminthological status of European bison in Białowiez˙a Forest in the winter 2007/2008. European Bison Conservation Newsletter, 1, 42–52. Retrieved from http://ojs.wisent.org/index.php/czasopismo/article/view/5