| article html file updated | 7 February 2020 16:04 CET | Update | https://www.mdpi.com/2075-163X/6/4/103 |
| article html file updated | 22 September 2019 02:23 CEST | Update | - |
| article html file updated | 5 May 2019 02:10 CEST | Update | - |
| article html file updated | 30 December 2016 06:00 CET | Update | - |
| article html file updated | 9 October 2016 11:00 CEST | Original file | - |
| article xml uploaded. | 9 October 2016 10:59 CEST | Original file | https://www.mdpi.com/2075-163X/6/4/103/xml |
| article pdf uploaded. | 9 October 2016 10:59 CEST | Version of Record | https://www.mdpi.com/2075-163X/6/4/103/pdf |
