Sustainable Strategies for the Upgrading of Natural Gas: Fundamentals, Challenges, and Opportunities Proceedings of the NATO Advanced Study Institute on Sustainable Strategies for the Upgrading of Natural Gas: Fundamentals, Challenges, and Opportunities Vilamoura, Portugal 6–18 July 2003 - Derouane, Eric G.; Parmon, Valentin; Lemos, Francisco; Ramôa Ribeiro, Fernando (Springer Netherlands, 2005)