| article html file updated | 9 February 2020 20:57 CET | Update | https://www.mdpi.com/2227-7080/6/2/55 |
| article html file updated | 4 October 2019 11:08 CEST | Update | - |
| article html file updated | 30 April 2019 12:10 CEST | Update | - |
| article html file updated | 16 April 2019 12:34 CEST | Update | - |
| article html file updated | 16 April 2019 07:17 CEST | Update | - |
| article html file updated | 30 March 2019 09:29 CET | Update | - |
| article html file updated | 26 June 2018 05:13 CEST | Update | - |
| article html file updated | 10 June 2018 12:02 CEST | Original file | - |
| article pdf uploaded. | 10 June 2018 12:01 CEST | Version of Record | https://www.mdpi.com/2227-7080/6/2/55/pdf |
| article xml uploaded. | 10 June 2018 12:01 CEST | Update | https://www.mdpi.com/2227-7080/6/2/55/xml |
| article xml file uploaded | 10 June 2018 12:01 CEST | Original file | - |
