| article html file updated | 30 August 2025 04:25 CEST | Update | https://www.mdpi.com/2073-4433/9/6/221 |
| article html file updated | 16 July 2022 21:22 CEST | Update | - |
| article html file updated | 9 February 2020 20:53 CET | Update | - |
| article html file updated | 4 October 2019 10:45 CEST | Update | - |
| article html file updated | 30 April 2019 12:19 CEST | Update | - |
| article html file updated | 16 April 2019 12:44 CEST | Update | - |
| article html file updated | 16 April 2019 07:25 CEST | Update | - |
| article html file updated | 30 March 2019 09:19 CET | Update | - |
| article html file updated | 26 June 2018 10:54 CEST | Update | - |
| article html file updated | 9 June 2018 13:59 CEST | Original file | - |
| article pdf uploaded. | 9 June 2018 13:58 CEST | Updated version of record | https://www.mdpi.com/2073-4433/9/6/221/pdf |
| article xml uploaded. | 9 June 2018 13:58 CEST | Update | https://www.mdpi.com/2073-4433/9/6/221/xml |
| article xml file uploaded | 9 June 2018 13:58 CEST | Update | - |
| article xml file uploaded | 9 June 2018 10:25 CEST | Original file | - |