| article html file updated | 31 August 2025 01:37 CEST | Update | https://www.mdpi.com/2304-8158/8/9/421 |
| article html file updated | 20 July 2022 03:12 CEST | Update | N/A |
| article html file updated | 13 February 2020 18:28 CET | Update | N/A |
| article html file updated | 25 September 2019 23:06 CEST | Update | N/A |
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| article html file updated | 18 September 2019 12:37 CEST | Original file | N/A |
| article pdf uploaded. | 18 September 2019 12:30 CEST | Version of Record | https://www.mdpi.com/2304-8158/8/9/421/pdf |
| article xml uploaded. | 18 September 2019 12:30 CEST | Update | https://www.mdpi.com/2304-8158/8/9/421/xml |
| article xml file uploaded | 18 September 2019 12:30 CEST | Original file | N/A |
