Al-Kass, Ziyad; Spergser, Joachim; Aurich, Christine; Kuhl, Juliane; Schmidt, Kathrin; Morrell, Jane M. (2019). "Effect of presence or absence of antibiotics and use of modified single layer centrifugation on bacteria in pony stallion semen". Reproduction in Domestic Animals. 54 (2): 342–349. doi:10.1111/rda.13366. ISSN1439-0531. PMID30351456. S2CID53035726.
Al-Kass, Ziyad; Spergser, Joachim; Aurich, Christine; Kuhl, Juliane; Schmidt, Kathrin; Morrell, Jane M. (2019). "Effect of presence or absence of antibiotics and use of modified single layer centrifugation on bacteria in pony stallion semen". Reproduction in Domestic Animals. 54 (2): 342–349. doi:10.1111/rda.13366. ISSN1439-0531. PMID30351456. S2CID53035726.
Al-Kass, Ziyad; Spergser, Joachim; Aurich, Christine; Kuhl, Juliane; Schmidt, Kathrin; Morrell, Jane M. (2019). "Effect of presence or absence of antibiotics and use of modified single layer centrifugation on bacteria in pony stallion semen". Reproduction in Domestic Animals. 54 (2): 342–349. doi:10.1111/rda.13366. ISSN1439-0531. PMID30351456. S2CID53035726.
Al-Kass, Ziyad; Spergser, Joachim; Aurich, Christine; Kuhl, Juliane; Schmidt, Kathrin; Morrell, Jane M. (2019). "Effect of presence or absence of antibiotics and use of modified single layer centrifugation on bacteria in pony stallion semen". Reproduction in Domestic Animals. 54 (2): 342–349. doi:10.1111/rda.13366. ISSN1439-0531. PMID30351456. S2CID53035726.