| article html file updated | 29 August 2025 22:40 CEST | Update | https://www.mdpi.com/1999-4915/8/2/43 |
| article html file updated | 20 August 2025 22:12 CEST | Update | N/A |
| article html file updated | 7 February 2020 04:17 CET | Update | N/A |
| article html file updated | 6 May 2019 00:56 CEST | Update | N/A |
| article html file updated | 26 March 2019 20:09 CET | Original file | N/A |
| article pdf uploaded. | 16 February 2016 14:26 CET | Updated version of record | https://www.mdpi.com/1999-4915/8/2/43/pdf |
| article xml uploaded. | 16 February 2016 14:26 CET | Update | https://www.mdpi.com/1999-4915/8/2/43/xml |
| article pdf uploaded. | 4 February 2016 11:38 CET | Version of Record | https://www.mdpi.com/1999-4915/8/2/43/pdf-vor |
| article xml uploaded. | 4 February 2016 11:38 CET | Original file | N/A |
