BibCnrs, CAB Direct, CAPlus / SciFinder, CNKI, CNPIEC, Digital Science, DOAJ, EBSCO, Scopus, Ei Compendex, FRIDOC, Gale, Inspec, Living Archive for Process Systems Engineering (LAPSE), OpenAIRE, OSTI (U.S. Department of Energy), PATENTSCOPE, ProQuest, EconPapers, IDEAS, SafetyLit, SCIE, Current Contents – Engineering, Computing & Technology.