@article{ITA_1996__30_3_231_0,
     author = {Orgun, Mehmet Ali},
     title = {Incorporating an implicit time dimension into the relational model and algebra},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {231--260},
     publisher = {EDP-Sciences},
     volume = {30},
     number = {3},
     year = {1996},
     mrnumber = {1415830},
     zbl = {0860.68040},
     language = {en},
     url = {http://www.numdam.org/item/ITA_1996__30_3_231_0/}
}