| article html file updated | 9 February 2020 14:16 CET | Update | https://www.mdpi.com/2218-2004/6/2/21 |
| article html file updated | 2 October 2019 17:34 CEST | Update | - |
| article html file updated | 1 May 2019 02:35 CEST | Update | - |
| article html file updated | 17 April 2019 03:04 CEST | Update | - |
| article html file updated | 29 March 2019 16:43 CET | Update | - |
| article html file updated | 27 June 2018 11:41 CEST | Update | - |
| article html file updated | 18 April 2018 08:44 CEST | Original file | - |
| article pdf uploaded. | 18 April 2018 08:42 CEST | Version of Record | https://www.mdpi.com/2218-2004/6/2/21/pdf |
| article xml uploaded. | 18 April 2018 08:42 CEST | Update | https://www.mdpi.com/2218-2004/6/2/21/xml |
| article xml file uploaded | 18 April 2018 08:42 CEST | Original file | - |
