J. L. Yániz, I. Palacín, S. Vicente-Fiel, J. Gosalvez, C. López-Fernández, and P. Santolaria, “Short communication. Evaluation of a commercial kit based on acridine orange/propidium iodide to assess the plasma membrane integrity of ram sperm”, Span. j. agric. res., vol. 11, no. 2, pp. 362-365, Mar. 2013.