1. Erhard R. The case for holistic data integration. In: East European conference on advances in databases and information systems. Berlin: Springer; 2016.
2. Jagadish HV, Gehrke J, Labrinidis A, Papakonstantinou Y, Patel J, Ramakrishnan R, Shahabi C. Big data and its technical challenges. Commun ACM. 2014;57(14):86–94.
3. Ponniah P. Data extraction, transformation, and loading. New York: Wiley; 2001.
4. Dixon J. Pentaho, hadoop, and data lakes. James Dixon Blog. http://www.pentaho.com/blog/2010/10/15/pentaho-hadoop-and-data-lakes . Accessed 25 Dec 2017.
5. Quix C, Hai R, Vatov I. Metadata extraction and management in data lakes With GEMMS. Complex Syst Inf Model Quart. 2016;9(16):67–83.