Phylogenetic characterization of β-tubulins and development of pyrosequencing assays for benzimidazole resistance in cattle nematodes. oleh Janina Demeler, Nina Krüger, Jürgen Krücken, Vera C von der Heyden, Sabrina Ramünke, Ursula Küttler, Sandra Miltsch, Michael López Cepeda, Malcolm Knox, Jozef Vercruysse, Peter Geldhof, Achim Harder, Georg von Samson-Himmelstjerna