| article html file updated | 7 February 2020 20:03 CET | Update | https://www.mdpi.com/2073-4344/6/12/216 |
| article html file updated | 22 September 2019 13:48 CEST | Update | N/A |
| article html file updated | 4 May 2019 18:20 CEST | Update | N/A |
| article html file updated | 27 December 2016 11:39 CET | Update | N/A |
| article html file updated | 21 December 2016 11:01 CET | Update | N/A |
| article html file updated | 21 December 2016 11:00 CET | Original file | N/A |
| article xml uploaded. | 21 December 2016 10:59 CET | Update | https://www.mdpi.com/2073-4344/6/12/216/xml |
| article pdf uploaded. | 21 December 2016 10:59 CET | Updated version of record | https://www.mdpi.com/2073-4344/6/12/216/pdf |
| article xml uploaded. | 21 December 2016 10:59 CET | Original file | N/A |
| article pdf uploaded. | 21 December 2016 10:59 CET | Version of Record | N/A |
