| article html file updated | 8 February 2020 17:43 CET | Update | https://www.mdpi.com/2079-9268/7/4/25 |
| article html file updated | 27 September 2019 12:42 CEST | Update | N/A |
| article html file updated | 2 May 2019 22:54 CEST | Update | N/A |
| article html file updated | 3 October 2017 10:10 CEST | Original file | N/A |
| article xml uploaded. | 3 October 2017 10:09 CEST | Original file | https://www.mdpi.com/2079-9268/7/4/25/xml |
| article pdf uploaded. | 3 October 2017 10:09 CEST | Version of Record | https://www.mdpi.com/2079-9268/7/4/25/pdf |
