| article html file updated | 30 August 2025 08:43 CEST | Update | https://new.mdpi.com/2218-6581/7/4/69 |
| article html file updated | 21 August 2025 20:23 CEST | Update | - |
| article html file updated | 17 July 2022 08:40 CEST | Update | - |
| article html file updated | 10 February 2020 20:47 CET | Update | - |
| article html file updated | 10 October 2019 07:33 CEST | Update | - |
| article html file updated | 28 April 2019 09:35 CEST | Update | - |
| article html file updated | 14 April 2019 05:06 CEST | Update | - |
| article html file updated | 1 April 2019 19:36 CEST | Update | - |
| article html file updated | 25 December 2018 03:45 CET | Update | - |
| article html file updated | 28 November 2018 10:34 CET | Original file | - |
| article pdf uploaded. | 28 November 2018 10:32 CET | Updated version of record | https://new.mdpi.com/2218-6581/7/4/69/pdf |
| article xml uploaded. | 28 November 2018 10:32 CET | Update | https://new.mdpi.com/2218-6581/7/4/69/xml |
| article xml file uploaded | 28 November 2018 10:32 CET | Update | - |
| article pdf uploaded. | 11 November 2018 11:32 CET | Version of Record | https://new.mdpi.com/2218-6581/7/4/69/pdf-vor |
| article xml file uploaded | 11 November 2018 11:32 CET | Original file | - |
