| article html file updated | 7 February 2020 19:36 CET | Update | https://www.mdpi.com/2079-9292/5/4/91 |
| article html file updated | 22 September 2019 11:25 CEST | Update | - |
| article html file updated | 4 May 2019 19:16 CEST | Update | - |
| article html file updated | 29 December 2016 11:11 CET | Update | - |
| article html file updated | 14 December 2016 11:02 CET | Original file | - |
| article xml uploaded. | 14 December 2016 11:00 CET | Update | https://www.mdpi.com/2079-9292/5/4/91/xml |
| article xml uploaded. | 14 December 2016 11:00 CET | Update | - |
| article xml uploaded. | 14 December 2016 11:00 CET | Original file | - |
| article pdf uploaded. | 14 December 2016 11:00 CET | Version of Record | https://www.mdpi.com/2079-9292/5/4/91/pdf |
