01070nam0-22003131i-450-99000035845040332120001010000035845FED01000035845(Aleph)000035845FED0100003584520001010d--------km-y0itay50------baitay-------001yy<<An >>INVESTIGATION into outstanding problems concerning coal storage in and extraction from silos, including those of gasaccumulation and spontaneous ignitionCoal Research EstablishmentBrusselsECSC1990X,93 pp. ill. 30 cmEUR 13049 ENin testa al front.: Commission of the E uropean Communities - Technical coal rese archTechnical Coa L ResearchCommissione europeaBritish Coal Corporation.Coal Research EstablishmentITUNINARICAUNIMARCBK99000035845040332104 252-63DIC INGR.1520DINCHDINCHUNINAING01