| article html file updated | 7 February 2020 09:56 CET | Update | https://www.mdpi.com/2073-4360/8/6/228 |
| article html file updated | 21 September 2019 18:44 CEST | Update | N/A |
| article html file updated | 5 May 2019 13:23 CEST | Update | N/A |
| article html file updated | 27 March 2019 07:04 CET | Update | N/A |
| article html file updated | 18 March 2019 04:57 CET | Update | N/A |
| article html file updated | 29 June 2016 11:39 CEST | Update | N/A |
| article html file updated | 8 June 2016 15:39 CEST | Original file | N/A |
| article xml uploaded. | 8 June 2016 15:38 CEST | Update | https://www.mdpi.com/2073-4360/8/6/228/xml |
| article pdf uploaded. | 8 June 2016 15:38 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/6/228/pdf |
