CHOCHOLATÁ, Michaela. Spatial Instability in the Slovak Language Test Scores : a GWR Approach. In Quantitative Methods in Economics: Multiple Criteria Decision Making XX. International Scientific Conference. Quantitative Methods in Economics: Multiple Criteria Decision Making XX : Proceedings of the International Scientific Conference: 27th May - 29th May 2020, Púchov, Slovakia. - Bratislava : Letra Edu, 2020. ISBN 978-80-89962-60-0, pp. 127-134. VEGA 1/0193/20.