00634nab a2200181 4500 20260520000539.0 260224s xxu Behaviour of elements and minerals during preparation and combustion of the Pernik coal, Bulgaria 12/09/06 ; 06/11/02 27 p. Fuel Processing Technology Vol. 72, no. 2 (3 sept. 2001) ; p. 103-129 ARTICULO Vassilev, Stanislav V. 17918 Eskenazy, Greta M. 17919 Eskenazy, Greta M. 17919 Vassilev, Stanislav V. 17918 141893 141893 0 0 0 0 212712 BAAB BAAB 2026-03-04 200020280 0 200020280 2026-03-04 15:43:02 2026-03-04 ARTICULO