| article html file updated | 30 August 2025 00:09 CEST | Update | https://www.mdpi.com/2073-4425/8/1/13 |
| article html file updated | 16 July 2022 04:19 CEST | Update | N/A |
| article html file updated | 7 February 2020 20:33 CET | Update | N/A |
| article html file updated | 22 September 2019 16:38 CEST | Update | N/A |
| article html file updated | 4 May 2019 17:17 CEST | Update | N/A |
| article html file updated | 7 February 2017 12:18 CET | Update | N/A |
| article html file updated | 30 December 2016 10:48 CET | Original file | N/A |
| article xml uploaded. | 30 December 2016 10:47 CET | Original file | https://www.mdpi.com/2073-4425/8/1/13/xml |
| article pdf uploaded. | 30 December 2016 10:47 CET | Version of Record | https://www.mdpi.com/2073-4425/8/1/13/pdf |
