| article html file updated | 31 August 2025 09:38 CEST | Update | https://www.mdpi.com/2220-9964/9/2/68 |
| article html file updated | 20 July 2022 18:09 CEST | Update | - |
| article html file updated | 6 March 2020 17:34 CET | Update | - |
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| article html file updated | 12 February 2020 13:40 CET | Original file | - |
| article pdf uploaded. | 12 February 2020 13:38 CET | Updated version of record | https://www.mdpi.com/2220-9964/9/2/68/pdf |
| article xml uploaded. | 12 February 2020 13:38 CET | Update | https://www.mdpi.com/2220-9964/9/2/68/xml |
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| article pdf uploaded. | 7 February 2020 11:49 CET | Updated version of record | https://www.mdpi.com/2220-9964/9/2/68/pdf-vor |
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| article pdf uploaded. | 21 January 2020 16:08 CET | Version of Record | https://www.mdpi.com/2220-9964/9/2/68/pdf-vor |
| article xml file uploaded | 21 January 2020 16:08 CET | Original file | - |
