| article html file updated | 9 February 2020 04:30 CET | Update | https://www.mdpi.com/2227-7080/6/1/18 |
| article html file updated | 30 September 2019 06:23 CEST | Update | - |
| article html file updated | 1 May 2019 23:14 CEST | Update | - |
| article html file updated | 17 April 2019 21:51 CEST | Update | - |
| article html file updated | 28 March 2019 18:40 CET | Update | - |
| article html file updated | 28 March 2018 04:21 CEST | Update | - |
| article html file updated | 27 March 2018 16:52 CEST | Update | - |
| article html file updated | 29 January 2018 05:22 CET | Update | - |
| article xml uploaded. | 29 January 2018 05:21 CET | Update | https://www.mdpi.com/2227-7080/6/1/18/xml |
| article xml uploaded. | 29 January 2018 05:21 CET | Update | - |
| article pdf uploaded. | 29 January 2018 05:21 CET | Updated version of record | https://www.mdpi.com/2227-7080/6/1/18/pdf |
| article html file updated | 26 January 2018 17:06 CET | Original file | - |
| article xml uploaded. | 26 January 2018 17:05 CET | Update | - |
| article xml uploaded. | 26 January 2018 17:05 CET | Original file | - |
| article pdf uploaded. | 26 January 2018 17:05 CET | Version of Record | https://www.mdpi.com/2227-7080/6/1/18/pdf-vor |
