| article html file updated | 31 August 2025 22:24 CEST | Update | https://www.mdpi.com/2304-8158/9/6/721 |
| article html file updated | 21 July 2022 06:48 CEST | Update | - |
| article html file updated | 10 October 2020 04:11 CEST | Update | - |
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| article html file updated | 22 June 2020 09:17 CEST | Update | - |
| article pdf uploaded. | 22 June 2020 09:15 CEST | Updated version of record | https://www.mdpi.com/2304-8158/9/6/721/pdf |
| article xml uploaded. | 22 June 2020 09:15 CEST | Update | https://www.mdpi.com/2304-8158/9/6/721/xml |
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| article html file updated | 22 June 2020 08:54 CEST | Original file | - |
| article pdf uploaded. | 22 June 2020 08:53 CEST | Updated version of record | https://www.mdpi.com/2304-8158/9/6/721/pdf-vor |
| article xml file uploaded | 22 June 2020 08:53 CEST | Original file | - |
| article pdf uploaded. | 2 June 2020 14:13 CEST | Updated version of record | https://www.mdpi.com/2304-8158/9/6/721/pdf-vor |
| article pdf uploaded. | 2 June 2020 14:13 CEST | Version of Record | https://www.mdpi.com/2304-8158/9/6/721/pdf-vor |
