| article html file updated | 31 August 2025 10:43 CEST | Update | https://www.mdpi.com/1996-1073/13/3/661 | 
| article html file updated | 20 July 2022 19:15 CEST | Update | - | 
| article html file updated | 20 February 2020 10:04 CET | Update | - | 
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| article html file updated | 5 February 2020 22:19 CET | Original file | - | 
| article pdf uploaded. | 5 February 2020 14:27 CET | Updated version of record | https://www.mdpi.com/1996-1073/13/3/661/pdf | 
| article xml uploaded. | 5 February 2020 14:27 CET | Update | https://www.mdpi.com/1996-1073/13/3/661/xml | 
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| article pdf uploaded. | 4 February 2020 16:23 CET | Version of Record | https://www.mdpi.com/1996-1073/13/3/661/pdf-vor | 
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