Geochronology of garnet-bearing skarns from the region of Babyak and Galabovo, Western Rhodopes (Bulgaria). - Stavrev, Milen; Peytcheva, Irena; Hikov, Atanas; Vassileva, Rossitsa D.; von Quadt, Albrecht; Guillong, Marcel; Grozdev, Valentin; Plotkina, Yulia (Proceedings of the Bulgarian Geological Society, 2019)