| article html file updated | 9 February 2020 12:33 CET | Update | https://www.mdpi.com/2218-2004/6/2/16 |
| article html file updated | 2 October 2019 06:58 CEST | Update | N/A |
| article html file updated | 1 May 2019 06:03 CEST | Update | N/A |
| article html file updated | 17 April 2019 06:09 CEST | Update | N/A |
| article html file updated | 29 March 2019 12:46 CET | Update | N/A |
| article html file updated | 27 June 2018 11:40 CEST | Update | N/A |
| article html file updated | 4 April 2018 13:51 CEST | Original file | N/A |
| article pdf uploaded. | 4 April 2018 13:50 CEST | Version of Record | https://www.mdpi.com/2218-2004/6/2/16/pdf |
| article xml uploaded. | 4 April 2018 13:50 CEST | Update | https://www.mdpi.com/2218-2004/6/2/16/xml |
| article xml file uploaded | 4 April 2018 13:50 CEST | Original file | N/A |
