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Submitted on: 15 December 2022.
Revised on: 06 March 2023.
Accepted on: 17 April 2023.
___________________Geographia Cassoviensis---PAVOL JOZEF SAFARIK UNIV, FAC SCI, INST GEOGRAPHY
Submitted on: 04 October 2018.
Revised on: 27 December 2018.
Accepted on: 18 February 2019.
___________________Geographia Cassoviensis---PAVOL JOZEF SAFARIK UNIV, FAC SCI, INST GEOGRAPHY