Carbon dioxide binding in the heterogeneous systems formed at combustion of oil shale. 4, Reactivity of ashes towards acid gases in the system fly ash-flue gasesKaljuvee, Tiit; Kuusik, Rein, keemik; Radin, Maia; Bender, VillemOil shale2004 / 1, p. 13-26 : ill https://artiklid.elnet.ee/record=b1015100*est