| article html file updated | 9 February 2020 03:56 CET | Update | https://www.mdpi.com/2220-9964/7/1/34 |
| article html file updated | 30 September 2019 03:11 CEST | Update | - |
| article html file updated | 2 May 2019 00:24 CEST | Update | - |
| article html file updated | 17 April 2019 22:51 CEST | Update | - |
| article html file updated | 28 March 2019 17:30 CET | Update | - |
| article html file updated | 1 February 2018 11:06 CET | Update | - |
| article html file updated | 23 January 2018 12:55 CET | Original file | - |
| article xml uploaded. | 23 January 2018 12:54 CET | Update | https://www.mdpi.com/2220-9964/7/1/34/xml |
| article xml uploaded. | 23 January 2018 12:54 CET | Update | - |
| article xml uploaded. | 22 January 2018 17:37 CET | Update | - |
| article xml uploaded. | 22 January 2018 17:37 CET | Update | - |
| article xml uploaded. | 22 January 2018 17:37 CET | Original file | - |
| article pdf uploaded. | 22 January 2018 17:35 CET | Version of Record | https://www.mdpi.com/2220-9964/7/1/34/pdf |
