@article{IJAMCS_2019_29_1_a2,
     author = {Mahlknecht, Giovanni and Dign\"os, Anton and Kozmina, Natalija},
     title = {Modeling and querying facts with period timestamps in data warehouses},
     journal = {International Journal of Applied Mathematics and Computer Science},
     pages = {31--49},
     year = {2019},
     volume = {29},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IJAMCS_2019_29_1_a2/}
}