| article html file updated | 7 February 2020 21:23 CET | Update | https://www.mdpi.com/1424-2818/9/1/5 |
| article html file updated | 22 September 2019 20:55 CEST | Update | - |
| article html file updated | 4 May 2019 15:29 CEST | Update | - |
| article html file updated | 29 March 2017 10:28 CEST | Update | - |
| article html file updated | 13 January 2017 09:44 CET | Original file | - |
| article xml uploaded. | 13 January 2017 09:43 CET | Original file | https://www.mdpi.com/1424-2818/9/1/5/xml |
| article pdf uploaded. | 13 January 2017 09:43 CET | Version of Record | https://www.mdpi.com/1424-2818/9/1/5/pdf |
