| article html file updated | 7 February 2020 18:58 CET | Update | https://www.mdpi.com/2079-6374/6/4/59 |
| article html file updated | 22 September 2019 08:20 CEST | Update | - |
| article html file updated | 4 May 2019 20:35 CEST | Update | - |
| article html file updated | 28 December 2016 10:57 CET | Update | - |
| article html file updated | 5 December 2016 14:35 CET | Update | - |
| article xml uploaded. | 5 December 2016 14:34 CET | Update | https://www.mdpi.com/2079-6374/6/4/59/xml |
| article pdf uploaded. | 5 December 2016 14:34 CET | Updated version of record | https://www.mdpi.com/2079-6374/6/4/59/pdf |
| article html file updated | 2 December 2016 08:23 CET | Original file | - |
| article xml uploaded. | 2 December 2016 08:22 CET | Original file | - |
| article pdf uploaded. | 2 December 2016 08:22 CET | Version of Record | https://www.mdpi.com/2079-6374/6/4/59/pdf-vor |
