Stipkovits L, Ripley PH, Tenk M, Glávits R, Molnár T, Fodor L (June 2005). "The efficacy of valnemulin (Econor) in the control of disease caused by experimental infection of calves with Mycoplasma bovis". Research in Veterinary Science. 78 (3): 207–15. doi:10.1016/j.rvsc.2004.09.005. PMID15766939.
Stipkovits L, Ripley PH, Tenk M, Glávits R, Molnár T, Fodor L (June 2005). "The efficacy of valnemulin (Econor) in the control of disease caused by experimental infection of calves with Mycoplasma bovis". Research in Veterinary Science. 78 (3): 207–15. doi:10.1016/j.rvsc.2004.09.005. PMID15766939.