| article html file updated | 8 February 2020 17:00 CET | Update | https://www.mdpi.com/2079-8954/5/4/48 |
| article html file updated | 27 September 2019 08:09 CEST | Update | - |
| article html file updated | 3 May 2019 00:23 CEST | Update | - |
| article html file updated | 2 January 2018 11:12 CET | Update | - |
| article html file updated | 23 September 2017 11:55 CEST | Original file | - |
| article xml uploaded. | 23 September 2017 11:54 CEST | Original file | https://www.mdpi.com/2079-8954/5/4/48/xml |
| article pdf uploaded. | 23 September 2017 11:54 CEST | Version of Record | https://www.mdpi.com/2079-8954/5/4/48/pdf |
