1. Blanton G (1998) Hidden costs to society. Qual Dig 18(6):18
2. IEA (2009) World energy outlook. Technical report, International Energy Agency (IEA)
3. IPCC (2001) Climate change 2001: the scientific basis. Contribution of working group i to the intergovernmental panel on climate change. Technical report, Intergovernmental Panel on Climate Change (IPCC)
4. ISO (1994) ISO 9000 handbook, 2nd edn. Irwin Professional Publishing, Fairfax, VA, USA
5. Liefner I, Losacker S, Rao B (2020) Scale up advanced frugal design principles. Nat Sustain