| article html file updated | 7 February 2020 19:01 CET | Update | https://www.mdpi.com/2075-4701/6/12/305 |
| article html file updated | 22 September 2019 08:31 CEST | Update | - |
| article html file updated | 4 May 2019 20:30 CEST | Update | - |
| article html file updated | 28 December 2016 11:19 CET | Update | - |
| article html file updated | 2 December 2016 11:35 CET | Original file | - |
| article xml uploaded. | 2 December 2016 11:33 CET | Original file | https://www.mdpi.com/2075-4701/6/12/305/xml |
| article pdf uploaded. | 2 December 2016 11:33 CET | Version of Record | https://www.mdpi.com/2075-4701/6/12/305/pdf |
