| article html file updated | 31 August 2025 09:28 CEST | Update | https://www.mdpi.com/2304-8158/9/1/108 |
| article html file updated | 20 July 2022 18:00 CEST | Update | - |
| article html file updated | 15 February 2020 04:36 CET | Update | - |
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| article pdf uploaded. | 20 January 2020 10:42 CET | Version of Record | https://www.mdpi.com/2304-8158/9/1/108/pdf |
| article xml uploaded. | 20 January 2020 10:42 CET | Update | https://www.mdpi.com/2304-8158/9/1/108/xml |
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