1. 1. Australian Spatial Data Directory (ASDD). Retrieved from: http://asdd.ga.gov.au
2. 2. Bubir, N., & Khazova, N. (2016). Geoportal as a means of monitoring land resources of settlements. Problems of continuing geographical education and cartography, (24), 8-12. removed from https://periodicals.karazin.ua/pbgok/article/view/6398(in Ukrainian)
3. 3. Chernyaga, P. G., Lagodniuk, O., & Romanyuk, O. (2010.) Principles of formation of geospatial data infrastructure to ensure sustainable tourism development. Geodesy, cartography and aerial photography. 73, 115-121. (in Ukrainian).
4. 4. Chandra, U., Jain, K., & Jain, S. K. (2013). Mashup as a future of Geo-Portal. International Journal of Advanced Research in Engineering and Technology (IJARET), 4(4), 22-26. ISSN: 0976 - 6499.
5. 5. Corongiu, M., Mari, R., Ferrari, R., Bottai, L., Grasso, V., Zabini, F., ... & Giannecchini, S. (2016). The opendata geoportal of the Lamma Consortium. PeerJ Preprints, 4, e2247v2. https://doi.org/10.7287/peerj.preprints.2247v3