A Relational Model of Data for Large Shared Data Banks by Edgar F. Codd [Turing Award Winner] http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.98.5286&

A Relational Model of Data for Large Shared Data Banks by Edgar F. Codd [Turing Award Winner] http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.98.5286&rep=rep1&type=pdf http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.98.... This is the seminal paper that laid the foundation for RDBMS systems. At my university (NUS) the CS program had a research paper reading program, where sophomores were tasked to read and summarize a well known paper and this was one of the most popular.