TY - JOUR A1 - Hadjidimitriou, Natalia Selini A1 - Koch, Thorsten A1 - Lippi, Marco A1 - Petkovic, Milena A1 - Mamei, Marco T1 - Spatial analysis of COVID-19 and the Russia–Ukraine war impacts on natural gas flows using statistical and machine learning models T2 - World Wide Web Y1 - 2026 UR - https://opus4.kobv.de/opus4-zib/frontdoor/index/index/docId/10276 SN - 1386-145X VL - 29 IS - 2 PB - Springer Science and Business Media LLC ER -