 Ramsey's article includes a sketch for a "self-sufficient pedestrian solar village" by one of his students that looks very similar to eco-villages today.The movement became more focused and organized in the cohousing and related alternative-community movements of the mid-1980s.Then, in 1991, Robert Gilman and Diane Gilman co-authored a germinal study called "Ecovillages and Sustainable Communities" for Gaia Trust, in which the ecological and communitarian themes were brought together.