| article html file updated | 29 August 2025 22:43 CEST | Update | https://www.mdpi.com/2312-7481/2/1/9 |
| article html file updated | 16 July 2022 01:47 CEST | Update | N/A |
| article html file updated | 7 February 2020 04:39 CET | Update | N/A |
| article html file updated | 6 May 2019 00:07 CEST | Update | N/A |
| article html file updated | 26 March 2019 20:55 CET | Update | N/A |
| article html file updated | 8 June 2016 09:23 CEST | Original file | N/A |
| article pdf uploaded. | 17 February 2016 10:25 CET | Version of Record | https://www.mdpi.com/2312-7481/2/1/9/pdf |
| article xml uploaded. | 17 February 2016 10:25 CET | Original file | https://www.mdpi.com/2312-7481/2/1/9/xml |
