| article html file updated | 8 February 2020 17:45 CET | Update | https://www.mdpi.com/2079-9292/6/4/76 |
| article html file updated | 27 September 2019 12:59 CEST | Update | N/A |
| article html file updated | 2 May 2019 22:49 CEST | Update | N/A |
| article html file updated | 2 January 2018 11:24 CET | Update | N/A |
| article html file updated | 10 October 2017 14:23 CEST | Original file | N/A |
| article xml uploaded. | 10 October 2017 14:22 CEST | Original file | https://www.mdpi.com/2079-9292/6/4/76/xml |
| article pdf uploaded. | 10 October 2017 14:22 CEST | Updated version of record | https://www.mdpi.com/2079-9292/6/4/76/pdf |
| article pdf uploaded. | 3 October 2017 13:13 CEST | Version of Record | https://www.mdpi.com/2079-9292/6/4/76/pdf-vor |
