| article html file updated | 8 February 2020 08:08 CET | Update | https://www.mdpi.com/2218-2004/5/2/23 |
| article html file updated | 25 September 2019 07:35 CEST | Update | N/A |
| article html file updated | 3 May 2019 17:45 CEST | Update | N/A |
| article html file updated | 28 June 2017 12:32 CEST | Update | N/A |
| article html file updated | 13 June 2017 14:07 CEST | Original file | N/A |
| article xml uploaded. | 13 June 2017 14:05 CEST | Original file | https://www.mdpi.com/2218-2004/5/2/23/xml |
| article pdf uploaded. | 13 June 2017 14:05 CEST | Version of Record | https://www.mdpi.com/2218-2004/5/2/23/pdf |
