Fagan, Eder Paulo, et al. “Evaluation of the Milk Physicochemical and Microbiological Patterns in Different Lactation Phases in Year Seasons in Milk Farms of Paraná State - Brazil”. Semina: Ciências Agrárias, vol. 29, no. 3, Sept. 2008, pp. 651-60, doi:10.5433/1679-0359.2008v29n3p651.