| article html file updated | 7 February 2020 19:19 CET | Update | https://www.mdpi.com/2075-163X/6/4/129 |
| article html file updated | 22 September 2019 09:47 CEST | Update | N/A |
| article html file updated | 4 May 2019 19:53 CEST | Update | N/A |
| article html file updated | 30 December 2016 06:13 CET | Update | N/A |
| article html file updated | 8 December 2016 13:00 CET | Original file | N/A |
| article xml uploaded. | 8 December 2016 12:59 CET | Original file | https://www.mdpi.com/2075-163X/6/4/129/xml |
| article pdf uploaded. | 8 December 2016 12:59 CET | Version of Record | https://www.mdpi.com/2075-163X/6/4/129/pdf |
