TY - GEN AU - Elverts, B., ed...[et.al] TI - Ullmann's encyclopedias of industrial chemistry - vol. A 23 SN - 3-527-20123-8 PY - 1993/// CY - Weinheim PB - VCH Verlagsgesellschaft KW - CHEMICAL ENGINEERING-ENCYCLOPEDIAS N1 - vol. A 23 - refratory ceramics to Silicon Carbide ER -