Karl E. Munther
- Cutting household energy use by 40 per cent. Dans: Bâtiment International / Building Research and Practice, v. 6, n. 3 (mai 1978). (1978):
- Réduction de 40 % de la consommation d'énergie domestique. Dans: Bâtiment International / Building Research and Practice, v. 6, n. 3 (mai 1978). (1978):