| article html file updated | 11 February 2020 21:34 CET | Update | https://www.mdpi.com/2227-7102/9/1/55 |
| article html file updated | 16 October 2019 10:49 CEST | Update | - |
| article html file updated | 26 April 2019 04:34 CEST | Update | - |
| article html file updated | 11 April 2019 23:41 CEST | Update | - |
| article html file updated | 10 April 2019 21:28 CEST | Update | - |
| article html file updated | 4 April 2019 11:36 CEST | Update | - |
| article html file updated | 12 March 2019 09:42 CET | Original file | - |
| article pdf uploaded. | 12 March 2019 09:41 CET | Version of Record | https://www.mdpi.com/2227-7102/9/1/55/pdf |
| article xml uploaded. | 12 March 2019 09:41 CET | Update | https://www.mdpi.com/2227-7102/9/1/55/xml |
| article xml file uploaded | 12 March 2019 09:41 CET | Original file | - |
