| article html file updated | 8 February 2020 21:30 CET | Update | https://www.mdpi.com/2079-9292/6/4/99 |
| article html file updated | 28 September 2019 13:33 CEST | Update | N/A |
| article html file updated | 2 May 2019 14:18 CEST | Update | N/A |
| article html file updated | 18 April 2019 11:58 CEST | Update | N/A |
| article html file updated | 2 January 2018 11:28 CET | Update | N/A |
| article html file updated | 17 November 2017 11:49 CET | Original file | N/A |
| article xml uploaded. | 17 November 2017 11:47 CET | Original file | https://www.mdpi.com/2079-9292/6/4/99/xml |
| article pdf uploaded. | 17 November 2017 11:47 CET | Version of Record | https://www.mdpi.com/2079-9292/6/4/99/pdf |
