| article html file updated | 29 August 2025 22:39 CEST | Update | https://www.mdpi.com/2225-1154/4/1/7 |
| article html file updated | 16 July 2022 01:42 CEST | Update | N/A |
| article html file updated | 7 February 2020 04:04 CET | Update | N/A |
| article html file updated | 21 September 2019 10:40 CEST | Update | N/A |
| article html file updated | 6 May 2019 01:22 CEST | Update | N/A |
| article html file updated | 26 March 2019 19:42 CET | Update | N/A |
| article html file updated | 29 March 2016 07:14 CEST | Original file | N/A |
| article pdf uploaded. | 29 January 2016 11:45 CET | Version of Record | https://www.mdpi.com/2225-1154/4/1/7/pdf |
| article xml uploaded. | 29 January 2016 11:45 CET | Original file | https://www.mdpi.com/2225-1154/4/1/7/xml |