| article html file updated | 7 February 2020 19:28 CET | Update | https://www.mdpi.com/2079-9292/5/4/90 |
| article html file updated | 22 September 2019 10:43 CEST | Update | - |
| article html file updated | 4 May 2019 19:32 CEST | Update | - |
| article html file updated | 29 December 2016 11:09 CET | Update | - |
| article html file updated | 12 December 2016 08:27 CET | Original file | - |
| article xml uploaded. | 12 December 2016 08:26 CET | Update | https://www.mdpi.com/2079-9292/5/4/90/xml |
| article xml uploaded. | 12 December 2016 08:26 CET | Original file | - |
| article pdf uploaded. | 12 December 2016 08:26 CET | Version of Record | https://www.mdpi.com/2079-9292/5/4/90/pdf |
