| article html file updated | 30 August 2025 09:35 CEST | Update | https://www.mdpi.com/1999-4907/9/12/757 |
| article html file updated | 17 July 2022 13:17 CEST | Update | - |
| article html file updated | 11 February 2020 01:16 CET | Update | - |
| article html file updated | 11 October 2019 11:29 CEST | Update | - |
| article html file updated | 27 April 2019 23:39 CEST | Update | - |
| article html file updated | 13 April 2019 19:33 CEST | Update | - |
| article html file updated | 2 April 2019 07:48 CEST | Update | - |
| article html file updated | 26 December 2018 04:06 CET | Update | - |
| article html file updated | 5 December 2018 08:14 CET | Original file | - |
| article pdf uploaded. | 5 December 2018 08:12 CET | Version of Record | https://www.mdpi.com/1999-4907/9/12/757/pdf |
| article xml uploaded. | 5 December 2018 08:12 CET | Update | https://www.mdpi.com/1999-4907/9/12/757/xml |
| article xml file uploaded | 5 December 2018 08:12 CET | Original file | - |
