- Reproduction in Domestic Animals. Antioxidant Enzyme Activity and mRNA Expression in Reproductive Tract of Adult Male European Bison (Bison bonasus, Linnaeus 1758). Koziorowska-Gilun M, Gilun P, Fraser L, Koziorowski M, Kordan W, Stefanczyk-Krzymowska S. 2013. No 48, 7-14.
- Reproductive Biology. Superoxide dismutase (SOD) in boar spermatozoa: purification, biochemical properties and changes in activity during semen storage (16oC) in different extenders. Orzołek A., Wysocki P., Strzeżek J., Kordan W., No 13, 34-40, 2013.
- Bulletin of the Veterinary Institute in Pulawy. Spectrophotometric analysis of the resazurin reduction test as a tool for assessing canine semen quality Strzeżek R., Filipowicz K., Stańczak M., Kordan W. 2013.57, 281-285.
- Acta Biochimica Polonica. The antigenic character of zinc-binding proteins and their localization in boar reproductive tract – A preliminary study. Mogielnicka-Brzozowska M., Fraser L., Strzeżek J., W. Kordan. 2013. Vol. 60, 2/2013, 255-258.
- Bulletin of the Veterinary Institute in Pulawy. Analysis of proapoptotic changes in boar spermatozoa stored at 16oC in different short-term semen extenders. Wysocki P., Łyjak A., Kordan W. 2013. 57, 425-428.
- Polish Journal of Veterinary Sciences. Effect of commercial long-term extenders on metabolic activity and membrane integrity of boar spermatozoa stored at 17oC. Dziekońska A., Fraser L., Majewska A., Lecewicz A., Zasiadczyk Ł, Kordan W. Vol. 16, No 3, 517-525, 2013.
- Polish Journal of Veterinary Sciences. Semen quality assessments and their significance in reproductive technology. Kordan W., Fraser L., Wysocki P., Strzeżek R., Lecewicz M., Mogielnicka-Brzozowska M., Dziekońska A., Soliwoda D., Koziorowska-Gilun M., 2013. Vol. 16, No 4, 823-833.
