Methane Hydrate Pellet Transport Using the Self-Preservation Effect: A Techno-Economic Analysis - Rehder, Gregor; Eckl, Robert; Elfgen, Markus; Falenty, Andrzej; Hamann, Rainer; Kähler, Nina; Kuhs, Werner F.; Osterkamp, Hans; Windmeier, Christoph (Energies, 2012)