TY - JOUR AU - Mahlknecht, Giovanni AU - Dignös, Anton AU - Kozmina, Natalija TI - Modeling and querying facts with period timestamps in data warehouses JO - International Journal of Applied Mathematics and Computer Science PY - 2019 SP - 31 EP - 49 VL - 29 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IJAMCS_2019_29_1_a2/ LA - en ID - IJAMCS_2019_29_1_a2 ER -