| article html file updated | 9 February 2020 00:30 CET | Update | https://www.mdpi.com/2079-9721/5/4/36 |
| article html file updated | 2 May 2019 07:40 CEST | Update | N/A |
| article html file updated | 18 April 2019 05:30 CEST | Update | N/A |
| article html file updated | 2 January 2018 20:44 CET | Update | N/A |
| article html file updated | 19 December 2017 09:13 CET | Original file | N/A |
| article xml uploaded. | 19 December 2017 09:12 CET | Original file | https://www.mdpi.com/2079-9721/5/4/36/xml |
| article pdf uploaded. | 19 December 2017 09:12 CET | Version of Record | https://www.mdpi.com/2079-9721/5/4/36/pdf |
