| article html file updated | 31 August 2025 01:53 CEST | Update | https://www.mdpi.com/2226-4787/7/4/138 |
| article html file updated | 20 July 2022 02:52 CEST | Update | - |
| article html file updated | 13 February 2020 19:46 CET | Update | - |
| article html file updated | 31 December 2019 00:32 CET | Update | - |
| article html file updated | 24 September 2019 05:30 CEST | Original file | - |
| article pdf uploaded. | 24 September 2019 05:28 CEST | Version of Record | https://www.mdpi.com/2226-4787/7/4/138/pdf |
| article xml uploaded. | 24 September 2019 05:28 CEST | Update | https://www.mdpi.com/2226-4787/7/4/138/xml |
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