| article html file updated | 30 August 2025 13:30 CEST | Update | https://www.mdpi.com/2073-4344/9/4/310 |
| article html file updated | 19 July 2022 17:00 CEST | Update | - |
| article html file updated | 12 February 2020 01:39 CET | Update | - |
| article html file updated | 17 October 2019 09:46 CEST | Update | - |
| article html file updated | 8 May 2019 16:33 CEST | Update | - |
| article html file updated | 25 April 2019 19:43 CEST | Update | - |
| article html file updated | 11 April 2019 15:01 CEST | Update | - |
| article html file updated | 10 April 2019 09:50 CEST | Update | - |
| article html file updated | 2 April 2019 03:59 CEST | Update | - |
| article html file updated | 29 March 2019 11:25 CET | Original file | - |
| article pdf uploaded. | 29 March 2019 11:24 CET | Version of Record | https://www.mdpi.com/2073-4344/9/4/310/pdf |
| article xml uploaded. | 29 March 2019 11:24 CET | Update | https://www.mdpi.com/2073-4344/9/4/310/xml |
| article xml file uploaded | 29 March 2019 11:24 CET | Original file | - |
