| article html file updated | 30 August 2025 10:38 CEST | Update | https://www.mdpi.com/2077-1312/7/1/6 |
| article html file updated | 17 July 2022 21:16 CEST | Update | - |
| article html file updated | 11 February 2020 06:53 CET | Update | - |
| article html file updated | 27 April 2019 11:03 CEST | Update | - |
| article html file updated | 13 April 2019 07:01 CEST | Update | - |
| article html file updated | 2 April 2019 22:33 CEST | Update | - |
| article html file updated | 29 January 2019 05:38 CET | Update | - |
| article html file updated | 5 January 2019 10:51 CET | Original file | - |
| article pdf uploaded. | 5 January 2019 10:50 CET | Version of Record | https://www.mdpi.com/2077-1312/7/1/6/pdf |
| article xml uploaded. | 5 January 2019 10:50 CET | Update | https://www.mdpi.com/2077-1312/7/1/6/xml |
| article xml file uploaded | 5 January 2019 10:50 CET | Original file | - |
