| article html file updated | 7 February 2020 07:23 CET | Update | https://www.mdpi.com/2073-4360/8/4/146 |
| article html file updated | 21 September 2019 15:21 CEST | Update | - |
| article html file updated | 5 May 2019 18:24 CEST | Update | - |
| article html file updated | 27 March 2019 02:06 CET | Update | - |
| article html file updated | 15 March 2019 12:08 CET | Update | - |
| article html file updated | 29 April 2016 09:59 CEST | Update | - |
| article html file updated | 16 April 2016 09:28 CEST | Original file | - |
| article xml uploaded. | 16 April 2016 09:26 CEST | Original file | https://www.mdpi.com/2073-4360/8/4/146/xml |
| article pdf uploaded. | 16 April 2016 09:26 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/4/146/pdf |
