| article html file updated | 8 February 2020 18:03 CET | Update | https://www.mdpi.com/2079-9292/6/4/79 |
| article html file updated | 27 September 2019 15:25 CEST | Update | - |
| article html file updated | 2 May 2019 22:11 CEST | Update | - |
| article html file updated | 2 January 2018 11:25 CET | Update | - |
| article html file updated | 11 October 2017 10:02 CEST | Original file | - |
| article xml uploaded. | 11 October 2017 10:00 CEST | Original file | https://www.mdpi.com/2079-9292/6/4/79/xml |
| article pdf uploaded. | 11 October 2017 10:00 CEST | Updated version of record | https://www.mdpi.com/2079-9292/6/4/79/pdf |
| article pdf uploaded. | 10 October 2017 15:24 CEST | Version of Record | https://www.mdpi.com/2079-9292/6/4/79/pdf-vor |
