| article html file updated | 24 December 2025 14:39 CET | Update | https://www.mdpi.com/2075-4701/9/4/422 |
| article html file updated | 30 August 2025 13:47 CEST | Update | N/A |
| article html file updated | 21 August 2025 20:35 CEST | Update | N/A |
| article html file updated | 12 February 2020 03:49 CET | Update | N/A |
| article html file updated | 17 October 2019 22:58 CEST | Update | N/A |
| article html file updated | 25 April 2019 15:15 CEST | Update | N/A |
| article html file updated | 23 April 2019 07:43 CEST | Original file | N/A |
| article pdf uploaded. | 23 April 2019 07:41 CEST | Updated version of record | https://www.mdpi.com/2075-4701/9/4/422/pdf |
| article xml uploaded. | 23 April 2019 07:41 CEST | Update | https://www.mdpi.com/2075-4701/9/4/422/xml |
| article xml file uploaded | 23 April 2019 07:41 CEST | Update | N/A |
| article pdf uploaded. | 8 April 2019 15:51 CEST | Version of Record | https://www.mdpi.com/2075-4701/9/4/422/pdf-vor |
| article xml file uploaded | 8 April 2019 15:51 CEST | Original file | N/A |