| article html file updated | 7 February 2020 19:28 CET | Update | https://www.mdpi.com/2073-4344/6/12/201 |
| article html file updated | 22 September 2019 10:39 CEST | Update | N/A |
| article html file updated | 4 May 2019 19:34 CEST | Update | N/A |
| article html file updated | 27 December 2016 11:33 CET | Update | N/A |
| article html file updated | 12 December 2016 12:13 CET | Original file | N/A |
| article xml uploaded. | 12 December 2016 12:12 CET | Original file | https://www.mdpi.com/2073-4344/6/12/201/xml |
| article pdf uploaded. | 12 December 2016 12:12 CET | Updated version of record | https://www.mdpi.com/2073-4344/6/12/201/pdf |
| article pdf uploaded. | 11 December 2016 08:59 CET | Version of Record | https://www.mdpi.com/2073-4344/6/12/201/pdf-vor |
