| article html file updated | 11 February 2020 23:49 CET | Update | https://www.mdpi.com/2227-7102/9/1/63 |
| article html file updated | 25 April 2019 23:50 CEST | Update | - |
| article html file updated | 11 April 2019 18:51 CEST | Update | - |
| article html file updated | 10 April 2019 21:33 CEST | Update | - |
| article html file updated | 4 April 2019 17:27 CEST | Update | - |
| article html file updated | 21 March 2019 10:19 CET | Original file | - |
| article pdf uploaded. | 21 March 2019 10:18 CET | Version of Record | https://www.mdpi.com/2227-7102/9/1/63/pdf |
| article xml uploaded. | 21 March 2019 10:18 CET | Update | https://www.mdpi.com/2227-7102/9/1/63/xml |
| article xml file uploaded | 21 March 2019 10:18 CET | Original file | - |
