| article html file updated | 9 February 2020 15:27 CET | Update | https://www.mdpi.com/2227-7080/6/2/44 |
| article html file updated | 3 October 2019 00:22 CEST | Update | - |
| article html file updated | 1 May 2019 00:19 CEST | Update | - |
| article html file updated | 17 April 2019 00:59 CEST | Update | - |
| article html file updated | 29 March 2019 19:31 CET | Update | - |
| article html file updated | 26 June 2018 05:01 CEST | Update | - |
| article html file updated | 26 April 2018 12:05 CEST | Original file | - |
| article pdf uploaded. | 26 April 2018 12:03 CEST | Version of Record | https://www.mdpi.com/2227-7080/6/2/44/pdf |
| article xml uploaded. | 26 April 2018 12:03 CEST | Update | https://www.mdpi.com/2227-7080/6/2/44/xml |
| article xml file uploaded | 26 April 2018 12:03 CEST | Original file | - |
