| article html file updated | 7 February 2020 05:22 CET | Update | https://www.mdpi.com/2073-4360/8/3/67 |
| article html file updated | 21 September 2019 12:27 CEST | Update | - |
| article html file updated | 5 May 2019 22:36 CEST | Update | - |
| article html file updated | 26 March 2019 22:24 CET | Update | - |
| article html file updated | 15 March 2019 11:49 CET | Update | - |
| article html file updated | 30 March 2016 07:57 CEST | Original file | - |
| article pdf uploaded. | 3 March 2016 09:17 CET | Version of Record | https://www.mdpi.com/2073-4360/8/3/67/pdf |
| article xml uploaded. | 3 March 2016 09:17 CET | Original file | https://www.mdpi.com/2073-4360/8/3/67/xml |
