Microbiological aspects of granular methanogenic sludge / J. DolfingPrecipitated nickel-alumina catalysts for the methanation of carbon monoxide / Hermanus Gerhardus Jozef Lansink RotgerinkCorrinoid-dependent methyl group transfer reactions in methylotrophic methanogens / Wilhelmus Marinus Hermanus van de WijngaardTetrahydromethanopterin-dependent enzymes involved in methanogenesis / Bernardus Wilhelmus Josef te BrömmelstroetMethanol-dependent methyl transfer reactions in Methanosarcina barkeri / Petrus Johannes Henricus DaasMethanogenesis from methylamines in Methanosarcina barkeri Fusaro / Roeland Wilhelmus WassenaarRegulation of hydrogenotrophic methanogenesis in Methanobacterium thermoautotrophicum / Jeroen Lambertus Antonius PenningsMethods in methane metabolismMethanogenesis : studies of the process and the micro-organisms involved in methane formation / door Theodorus Jacobus Henri Mari HuttenMethane formation by decomposition of methanol on supported nickel catalysts / door Pieter Klaas de Bokx