Decree on surveying…(Arcticle) and Agreement on the use of Lao97 Coordinate System in Lao PDR 1-2 September 2011 – Theory of Horizontal & Vectical Coordinate Systems – National Levelling Network & Datum Lao97 – Palameter values for Coordinate Systems and NGD’s practical applications using Lao97 Transformation parameters. – NGD Software and Lao97 – Transformations Between […]