| article html file updated | 24 December 2025 13:51 CET | Update | https://www.mdpi.com/2072-6643/8/1/21 |
| article html file updated | 29 August 2025 22:33 CEST | Update | N/A |
| article html file updated | 20 August 2025 22:09 CEST | Update | N/A |
| article html file updated | 7 February 2020 03:02 CET | Update | N/A |
| article html file updated | 6 May 2019 03:20 CEST | Update | N/A |
| article html file updated | 26 March 2019 17:44 CET | Original file | N/A |
| article pdf uploaded. | 6 January 2016 09:16 CET | Updated version of record | https://www.mdpi.com/2072-6643/8/1/21/pdf |
| article pdf uploaded. | 5 January 2016 13:45 CET | Version of Record | https://www.mdpi.com/2072-6643/8/1/21/pdf-vor |
| article xml uploaded. | 5 January 2016 13:45 CET | Original file | https://www.mdpi.com/2072-6643/8/1/21/xml |
