| article html file updated | 8 February 2020 02:06 CET | Update | https://new.mdpi.com/2072-6651/9/4/112 |
| article html file updated | 23 September 2019 23:34 CEST | Update | - |
| article html file updated | 4 May 2019 05:19 CEST | Update | - |
| article html file updated | 28 April 2017 11:13 CEST | Update | - |
| article html file updated | 27 March 2017 05:29 CEST | Original file | - |
| article xml uploaded. | 23 March 2017 14:52 CET | Update | https://new.mdpi.com/2072-6651/9/4/112/xml |
| article pdf uploaded. | 23 March 2017 14:52 CET | Version of Record | https://new.mdpi.com/2072-6651/9/4/112/pdf |
