| article html file updated | 7 February 2020 07:40 CET | Update | https://www.mdpi.com/2073-4360/8/4/160 |
| article html file updated | 21 September 2019 15:46 CEST | Update | - |
| article html file updated | 5 May 2019 17:49 CEST | Update | - |
| article html file updated | 27 March 2019 02:43 CET | Update | - |
| article html file updated | 15 March 2019 12:10 CET | Update | - |
| article html file updated | 29 April 2016 10:04 CEST | Update | - |
| article html file updated | 22 April 2016 10:40 CEST | Original file | - |
| article xml uploaded. | 22 April 2016 10:39 CEST | Original file | https://www.mdpi.com/2073-4360/8/4/160/xml |
| article pdf uploaded. | 22 April 2016 10:39 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/4/160/pdf |
