| article html file updated | 7 February 2020 09:34 CET | Update | https://www.mdpi.com/2073-4441/8/6/236 |
| article html file updated | 5 May 2019 14:05 CEST | Update | N/A |
| article html file updated | 27 March 2019 06:18 CET | Update | N/A |
| article html file updated | 29 June 2016 12:15 CEST | Update | N/A |
| article html file updated | 1 June 2016 08:33 CEST | Original file | N/A |
| article xml uploaded. | 1 June 2016 08:32 CEST | Original file | https://www.mdpi.com/2073-4441/8/6/236/xml |
| article pdf uploaded. | 1 June 2016 08:32 CEST | Version of Record | https://www.mdpi.com/2073-4441/8/6/236/pdf |
