| article html file updated | 24 December 2025 13:53 CET | Update | https://www.mdpi.com/1999-4915/8/2/38 |
| article html file updated | 29 August 2025 22:40 CEST | Update | N/A |
| article html file updated | 20 August 2025 22:12 CEST | Update | N/A |
| article html file updated | 16 July 2022 01:43 CEST | Update | N/A |
| article html file updated | 7 February 2020 04:14 CET | Update | N/A |
| article html file updated | 6 May 2019 01:03 CEST | Update | N/A |
| article html file updated | 26 March 2019 20:02 CET | Original file | N/A |
| article pdf uploaded. | 3 February 2016 11:34 CET | Version of Record | https://www.mdpi.com/1999-4915/8/2/38/pdf |
| article xml uploaded. | 3 February 2016 11:34 CET | Original file | https://www.mdpi.com/1999-4915/8/2/38/xml |