| article html file updated | 7 February 2020 12:43 CET | Update | https://www.mdpi.com/2218-2004/4/3/23 |
| article html file updated | 5 May 2019 08:14 CEST | Update | N/A |
| article html file updated | 27 March 2019 12:14 CET | Update | N/A |
| article html file updated | 28 September 2016 22:53 CEST | Update | N/A |
| article html file updated | 2 August 2016 13:37 CEST | Original file | N/A |
| article xml uploaded. | 2 August 2016 13:36 CEST | Original file | https://www.mdpi.com/2218-2004/4/3/23/xml |
| article pdf uploaded. | 2 August 2016 13:36 CEST | Version of Record | https://www.mdpi.com/2218-2004/4/3/23/pdf |
