| article html file updated | 30 August 2025 04:27 CEST | Update | https://www.mdpi.com/1999-4907/9/6/344 |
| article html file updated | 21 August 2025 20:15 CEST | Update | - |
| article html file updated | 16 July 2022 21:26 CEST | Update | - |
| article html file updated | 9 February 2020 21:02 CET | Update | - |
| article html file updated | 4 October 2019 11:39 CEST | Update | - |
| article html file updated | 30 April 2019 11:59 CEST | Update | - |
| article html file updated | 16 April 2019 12:23 CEST | Update | - |
| article html file updated | 16 April 2019 07:07 CEST | Update | - |
| article html file updated | 30 March 2019 09:40 CET | Update | - |
| article html file updated | 26 June 2018 05:44 CEST | Update | - |
| article html file updated | 12 June 2018 10:18 CEST | Update | - |
| article xml uploaded. | 12 June 2018 10:13 CEST | Update | https://www.mdpi.com/1999-4907/9/6/344/xml |
| article pdf uploaded. | 12 June 2018 10:13 CEST | Updated version of record | https://www.mdpi.com/1999-4907/9/6/344/pdf |
| article html file updated | 11 June 2018 11:39 CEST | Original file | - |
| article pdf uploaded. | 11 June 2018 11:38 CEST | Version of Record | https://www.mdpi.com/1999-4907/9/6/344/pdf-vor |
| article xml file uploaded | 11 June 2018 11:38 CEST | Original file | - |