Abdullah Uz Tansel. Non First Normal Form Temporal Relational Model. IEEE Data Eng. Bull., 11(4):46-52, 1988. [doi]
@article{Tansel88, title = {Non First Normal Form Temporal Relational Model}, author = {Abdullah Uz Tansel}, year = {1988}, url = {http://sites.computer.org/debull/88DEC-CD.pdf}, researchr = {https://researchr.org/publication/Tansel88}, cites = {0}, citedby = {0}, journal = {IEEE Data Eng. Bull.}, volume = {11}, number = {4}, pages = {46-52}, }