1. Anupam S, Pani P (2020) Flood forecasting using a hybrid extreme learning machine-particle swarm optimization algorithm (ELM-PSO) model. Model Earth Syst Environ 6:341–347. https://doi.org/10.1007/s40808-019-00682-z
2. Ayer J, Tiennah T (2008) datum transformation by the iterative solution of the abridging inverse molodensky formulae. Ghana Surv 1(2):59–66
3. Blick G (2004) Reference frames in practice manual. International Federation of Surveyors. https://www.fig.net/resources/publications/figpub/pub64/Figpub64.pdf Accessed 10 Jan 2020
4. Dawod GM, Mirza NM, Al-Ghamdi AK (2010) TS 8 Simple Precise Coordinates Transformations for Geomatics Applications in Makkah Metropolitan Area, Saudi-Arabia. Bridging the Gap between Cultures FIG Working Week, Marrakech, Morocco, 18–22
5. Deakin R (2006) A note on the bursa-wolf and molodensky-badekas transformations. http://www.mygeodesy.id.au/documents/Similarity%20Transforms.pdf. Accessed 14 Jan 2020