P. Heptonstall
- Is there an ‘energy gap’?. In: Proceedings of the Institution of Civil Engineers - Energy, v. 161, n. 4 (November 2008). (2008):
- Renewables and the grid: understanding intermittency. In: Proceedings of the Institution of Civil Engineers - Energy, v. 160, n. 1 (Februar 2007). (2007):