| article html file updated | 9 February 2020 02:48 CET | Update | https://www.mdpi.com/2220-9964/7/1/20 |
| article html file updated | 29 September 2019 20:33 CEST | Update | - |
| article html file updated | 2 May 2019 02:46 CEST | Update | - |
| article html file updated | 18 April 2019 00:59 CEST | Update | - |
| article html file updated | 28 March 2019 14:57 CET | Update | - |
| article html file updated | 1 February 2018 10:33 CET | Update | - |
| article html file updated | 12 January 2018 07:40 CET | Original file | - |
| article xml uploaded. | 12 January 2018 07:39 CET | Update | https://www.mdpi.com/2220-9964/7/1/20/xml |
| article xml uploaded. | 12 January 2018 07:39 CET | Original file | - |
| article pdf uploaded. | 12 January 2018 07:39 CET | Version of Record | https://www.mdpi.com/2220-9964/7/1/20/pdf |
