1. Asinger F (1971) Die petrolchemische industrie. Akademieverlag Berlin, Berlin
2. Bipp H, Kieczka H (2002) Formamides. In: Wiley-VCH (ed) Ullmann’s encyclopedia of industrial chemistry. Wiley-VCH, Weinheim
3. Boustead I (1997) Ecoprofile of Chloromethanes. European Chlorinated Solvent Association (ECSA), Brussels
4. Bretz RaF P (1996) Screening LCA for large numbers of products: estimation tools to fill data gaps. Int J LCA 1:139–146
5. Brühne F, Wright R (2004) Benzaldehyde. In: Wiley-VCH (ed) Ullmann’s encyclopedia of industrial chemistry. Wiley-VCH, Weinheim