| article html file updated | 30 August 2025 09:51 CEST | Update | https://www.mdpi.com/2075-4663/6/4/173 |
| article html file updated | 17 July 2022 15:03 CEST | Update | - |
| article html file updated | 11 February 2020 02:41 CET | Update | - |
| article html file updated | 11 October 2019 20:05 CEST | Update | - |
| article html file updated | 27 April 2019 20:33 CEST | Update | - |
| article html file updated | 13 April 2019 16:25 CEST | Update | - |
| article html file updated | 2 April 2019 11:51 CEST | Update | - |
| article html file updated | 25 December 2018 04:29 CET | Update | - |
| article html file updated | 12 December 2018 07:06 CET | Original file | - |
| article pdf uploaded. | 12 December 2018 07:05 CET | Version of Record | https://www.mdpi.com/2075-4663/6/4/173/pdf |
| article xml uploaded. | 12 December 2018 07:05 CET | Update | https://www.mdpi.com/2075-4663/6/4/173/xml |
| article xml file uploaded | 12 December 2018 07:05 CET | Original file | - |