E. M. D. S. Schmidt, “Evaluation of Experimental Vaccination Against Newcastle Disease and the Blood Proteinogram in Ring - Necked Pheasants (Phasianus colchicus) During Breeding Season ”, Int. J. Poult. Sci., vol. 7, no. 7, pp. 661–664, Jun. 2008, doi: 10.3923/ijps.2008.661.664.