| article html file updated | 7 February 2020 01:58 CET | Update | https://www.mdpi.com/2072-6651/7/12/4881 |
| article html file updated | 21 September 2019 07:30 CEST | Update | - |
| article html file updated | 6 May 2019 05:33 CEST | Update | - |
| article html file updated | 26 March 2019 16:02 CET | Original file | - |
| article pdf uploaded. | 9 December 2015 12:13 CET | Version of Record | https://www.mdpi.com/2072-6651/7/12/4881/pdf |
| article xml uploaded. | 9 December 2015 12:13 CET | Original file | https://www.mdpi.com/2072-6651/7/12/4881/xml |
