The research on the sifting from processing of East Donbass refuse heap for manufacturing wall ceramics goodsKhungianos Yavruyan, Evgeny Gaishun, Yuliya Teryokhina and Vladimir KotlyarMATEC Web Conf., 196 (2018) 04055DOI: https://doi.org/10.1051/matecconf/201819604055