| article html file updated | 30 August 2025 03:17 CEST | Update | https://www.mdpi.com/2073-4433/9/4/131 |
| article html file updated | 16 July 2022 10:23 CEST | Update | - |
| article html file updated | 9 February 2020 12:01 CET | Update | - |
| article html file updated | 23 October 2019 16:32 CEST | Update | - |
| article xml uploaded. | 23 October 2019 16:31 CEST | Update | https://www.mdpi.com/2073-4433/9/4/131/xml |
| article xml uploaded. | 23 October 2019 16:31 CEST | Update | - |
| article xml uploaded. | 23 October 2019 16:30 CEST | Update | - |
| article pdf uploaded. | 23 October 2019 16:30 CEST | Updated version of record | https://www.mdpi.com/2073-4433/9/4/131/pdf |
| Correction published | 18 October 2019 00:00 CEST | Correction | https://www.mdpi.com/2073-4433/10/10/630 |
| article html file updated | 2 October 2019 04:03 CEST | Update | - |
| article html file updated | 1 May 2019 07:05 CEST | Update | - |
| article html file updated | 17 April 2019 07:06 CEST | Update | - |
| article html file updated | 29 March 2019 11:35 CET | Update | - |
| article html file updated | 1 May 2018 12:47 CEST | Update | - |
| article html file updated | 31 March 2018 08:25 CEST | Original file | - |
| article pdf uploaded. | 31 March 2018 08:24 CEST | Version of Record | https://www.mdpi.com/2073-4433/9/4/131/pdf-vor |
