Viability of probiotic bacteria in fermented skim milk produced with different levels of milk powder and sugar - Maganha, Luciana Cecília; Rosim, Roice Eliana; Corassin, Carlos Humberto; Cruz, Adriano Gomes da; Faria, José de Assis Fonseca; Oliveira, Carlos Augusto Fernandes de (International Journal of Dairy Technology, 2014)