Andrade, Silvia Franco, et al. “Ex Vivo and in Vivo Study of Kowa HA-2 Applanation Tonometer in the Measurement of Intraocular Pressure in Dogs”. Semina: Ciências Agrárias, vol. 37, no. 2, Apr. 2016, pp. 797-06, doi:10.5433/1679-0359.2016v37n2p797.