| article html file updated | 30 August 2025 00:10 CEST | Update | https://www.mdpi.com/2227-9091/5/1/2 |
| article html file updated | 16 July 2022 04:21 CEST | Update | N/A |
| article html file updated | 7 February 2020 20:45 CET | Update | N/A |
| article html file updated | 22 September 2019 17:40 CEST | Update | N/A |
| article html file updated | 4 May 2019 16:53 CEST | Update | N/A |
| article html file updated | 29 March 2017 05:52 CEST | Update | N/A |
| article html file updated | 4 January 2017 09:18 CET | Original file | N/A |
| article xml uploaded. | 4 January 2017 09:17 CET | Original file | https://www.mdpi.com/2227-9091/5/1/2/xml |
| article pdf uploaded. | 4 January 2017 09:17 CET | Version of Record | https://www.mdpi.com/2227-9091/5/1/2/pdf |
