generate questions: Specific studies of Slavic genetics followed. In 2007 Rębała and colleagues studied several Slavic populations with the aim of localizing the Proto-Slavic homeland. The significant findings of this study are that:
When did Rębała and colleagues studied several Slavic populations with the aim of localizing the Proto-Slavic homeland? {sep_token} Who studied several Slavic populations with the aim of localizing the Proto-Slavic homeland? {sep_token} In 2007 Rębała and colleagues studied several Slavic populations with the aim of localizing what?