| article html file updated | 30 August 2025 09:57 CEST | Update | https://www.mdpi.com/2077-1312/6/4/157 |
| article html file updated | 17 July 2022 15:47 CEST | Update | - |
| article html file updated | 11 February 2020 03:13 CET | Update | - |
| article html file updated | 11 October 2019 23:19 CEST | Update | - |
| article html file updated | 27 April 2019 19:14 CEST | Update | - |
| article html file updated | 13 April 2019 15:12 CEST | Update | - |
| article html file updated | 2 April 2019 13:23 CEST | Update | - |
| article html file updated | 26 December 2018 12:13 CET | Update | - |
| article html file updated | 14 December 2018 11:36 CET | Original file | - |
| article pdf uploaded. | 14 December 2018 11:32 CET | Version of Record | https://www.mdpi.com/2077-1312/6/4/157/pdf |
| article xml uploaded. | 14 December 2018 11:32 CET | Update | https://www.mdpi.com/2077-1312/6/4/157/xml |
| article xml file uploaded | 14 December 2018 11:32 CET | Original file | - |
