| article html file updated | 29 August 2025 23:35 CEST | Update | https://www.mdpi.com/2218-1997/2/3/20 |
| article html file updated | 20 August 2025 22:23 CEST | Update | N/A |
| article html file updated | 7 February 2020 14:29 CET | Update | N/A |
| article html file updated | 5 May 2019 05:00 CEST | Update | N/A |
| article html file updated | 11 October 2016 07:25 CEST | Update | N/A |
| article html file updated | 6 September 2016 08:42 CEST | Original file | N/A |
| article xml uploaded. | 6 September 2016 08:41 CEST | Update | https://www.mdpi.com/2218-1997/2/3/20/xml |
| article xml uploaded. | 6 September 2016 08:41 CEST | Original file | N/A |
| article pdf uploaded. | 6 September 2016 08:41 CEST | Version of Record | https://www.mdpi.com/2218-1997/2/3/20/pdf |
