| article html file updated | 9 February 2020 02:19 CET | Update | https://www.mdpi.com/2227-7080/6/1/5 |
| article html file updated | 29 September 2019 18:01 CEST | Update | - |
| article html file updated | 2 May 2019 03:46 CEST | Update | - |
| article html file updated | 18 April 2019 01:54 CEST | Update | - |
| article html file updated | 28 March 2019 13:50 CET | Update | - |
| article html file updated | 28 March 2018 04:19 CEST | Update | - |
| article html file updated | 27 March 2018 16:50 CEST | Update | - |
| article html file updated | 8 January 2018 17:14 CET | Original file | - |
| article xml uploaded. | 8 January 2018 17:13 CET | Update | https://www.mdpi.com/2227-7080/6/1/5/xml |
| article pdf uploaded. | 8 January 2018 17:11 CET | Version of Record | https://www.mdpi.com/2227-7080/6/1/5/pdf |
