Richard Ellefsen

Mapping and measuring buildings in the canopy boundary layer in ten U.S. cities

Richard Ellefsen, R. Ellefsen, 1991 .

High resolution urban morphology data for urban wind flow modeling

Ronald M. Cionco, Richard Ellefsen, R. Cionco, 1998 .

Characteristics of Urban Terrain

Richard Ellefsen, Thomas Kuhn, Gary Spring, 1979 .

Urban land-use mapping by machine processing of ERTS-1 multispectral data - A San Francisco Bay Area example

Richard Ellefsen, Philip H Swain, James R Wray, 1973 .