| article html file updated | 24 December 2025 19:14 CET | Update | https://www.mdpi.com/2076-3921/9/6/506 |
| article html file updated | 31 August 2025 23:06 CEST | Update | N/A |
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| article html file updated | 21 July 2022 20:21 CEST | Update | N/A |
| article html file updated | 29 June 2020 10:46 CEST | Update | N/A |
| article pdf uploaded. | 29 June 2020 10:45 CEST | Updated version of record | https://www.mdpi.com/2076-3921/9/6/506/pdf |
| article xml uploaded. | 29 June 2020 10:45 CEST | Update | https://www.mdpi.com/2076-3921/9/6/506/xml |
| article xml file uploaded | 29 June 2020 10:45 CEST | Update | N/A |
| article html file updated | 28 June 2020 11:40 CEST | Original file | N/A |
| article pdf uploaded. | 28 June 2020 11:39 CEST | Updated version of record | https://www.mdpi.com/2076-3921/9/6/506/pdf-vor |
| article xml file uploaded | 28 June 2020 11:39 CEST | Original file | N/A |
| article pdf uploaded. | 9 June 2020 13:40 CEST | Version of Record | https://www.mdpi.com/2076-3921/9/6/506/pdf-vor |