| article html file updated | 7 February 2020 04:34 CET | Update | https://www.mdpi.com/2072-666X/7/2/30 |
| article html file updated | 21 September 2019 11:21 CEST | Update | - |
| article html file updated | 6 May 2019 00:19 CEST | Update | - |
| article html file updated | 26 March 2019 20:45 CET | Update | - |
| article html file updated | 15 October 2018 04:31 CEST | Original file | - |
| article pdf uploaded. | 15 February 2016 11:50 CET | Version of Record | https://www.mdpi.com/2072-666X/7/2/30/pdf |
| article xml uploaded. | 15 February 2016 11:50 CET | Original file | https://www.mdpi.com/2072-666X/7/2/30/xml |
