| article html file updated | 9 February 2020 02:53 CET | Update | https://www.mdpi.com/2227-9040/6/1/3 |
| article html file updated | 29 September 2019 20:59 CEST | Update | - |
| article html file updated | 2 May 2019 02:36 CEST | Update | - |
| article html file updated | 18 April 2019 00:49 CEST | Update | - |
| article html file updated | 28 March 2019 15:09 CET | Update | - |
| article html file updated | 26 March 2018 15:33 CEST | Update | - |
| article html file updated | 12 January 2018 13:42 CET | Original file | - |
| article xml uploaded. | 12 January 2018 13:41 CET | Update | https://www.mdpi.com/2227-9040/6/1/3/xml |
| article xml uploaded. | 12 January 2018 13:41 CET | Original file | - |
| article pdf uploaded. | 12 January 2018 13:41 CET | Version of Record | https://www.mdpi.com/2227-9040/6/1/3/pdf |
