| article html file updated | 30 August 2025 09:50 CEST | Update | https://www.mdpi.com/2077-1312/6/4/154 |
| article html file updated | 17 July 2022 14:56 CEST | Update | - |
| article html file updated | 11 February 2020 02:35 CET | Update | - |
| article html file updated | 11 October 2019 19:31 CEST | Update | - |
| article html file updated | 27 April 2019 20:45 CEST | Update | - |
| article html file updated | 13 April 2019 16:37 CEST | Update | - |
| article html file updated | 2 April 2019 11:36 CEST | Update | - |
| article html file updated | 25 February 2019 02:49 CET | Update | - |
| article xml uploaded. | 25 February 2019 02:46 CET | Update | https://www.mdpi.com/2077-1312/6/4/154/xml |
| article html file updated | 22 February 2019 07:17 CET | Update | - |
| article xml uploaded. | 22 February 2019 07:15 CET | Update | - |
| article xml uploaded. | 22 February 2019 07:15 CET | Update | - |
| article xml uploaded. | 22 February 2019 07:15 CET | Update | - |
| article html file updated | 26 December 2018 12:11 CET | Update | - |
| article html file updated | 11 December 2018 14:24 CET | Original file | - |
| article pdf uploaded. | 11 December 2018 14:22 CET | Version of Record | https://www.mdpi.com/2077-1312/6/4/154/pdf |
| article xml uploaded. | 11 December 2018 14:22 CET | Update | - |
| article xml file uploaded | 11 December 2018 14:22 CET | Original file | - |
