Evaluation Of The Primary Metabolism Of Monocultures And Yoghurt Starters With The Participation Of Urease-Deficient Streptococcus Thermophilus Strains. - Ivan Petelkov; Rositsa Denkova; Bogdan Goranov; Vesela Shopska; Georgi Kostov; Zapryana Denkova; Nadya Ninova-Nikolova; Zoltan Urshev; Svetlana Minkova (ECMS, 2016)