| article html file updated | 31 August 2025 01:03 CEST | Update | https://www.mdpi.com/2220-9964/8/9/399 |
| article html file updated | 20 July 2022 03:53 CEST | Update | - |
| article html file updated | 13 February 2020 15:40 CET | Update | - |
| article html file updated | 26 September 2019 01:45 CEST | Update | - |
| article html file updated | 6 September 2019 11:15 CEST | Original file | - |
| article pdf uploaded. | 6 September 2019 11:13 CEST | Version of Record | https://www.mdpi.com/2220-9964/8/9/399/pdf |
| article xml uploaded. | 6 September 2019 11:13 CEST | Update | https://www.mdpi.com/2220-9964/8/9/399/xml |
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