| article html file updated | 11 February 2020 21:05 CET | Update | https://www.mdpi.com/2227-7102/9/1/52 |
| article html file updated | 26 April 2019 05:34 CEST | Update | - |
| article html file updated | 12 April 2019 00:44 CEST | Update | - |
| article html file updated | 10 April 2019 21:27 CEST | Update | - |
| article html file updated | 4 April 2019 10:16 CEST | Update | - |
| article html file updated | 9 March 2019 05:21 CET | Original file | - |
| article pdf uploaded. | 9 March 2019 05:20 CET | Version of Record | https://www.mdpi.com/2227-7102/9/1/52/pdf |
| article xml uploaded. | 9 March 2019 05:20 CET | Update | https://www.mdpi.com/2227-7102/9/1/52/xml |
| article xml file uploaded | 9 March 2019 05:20 CET | Original file | - |
