Mucsi, Gábor, Ádám Rácz, Gergely Mag, Gábor Antal, and Barnabás Csőke. 2019. “Volume Based Closed-Cycle Hardgrove Grindability Method”. Rudarsko-geološko-Naftni Zbornik 34 (4). https://doi.org/10.17794/rgn.2019.4.2.