| article html file updated | 8 February 2020 15:44 CET | Update | https://www.mdpi.com/2079-9292/6/3/67 |
| article html file updated | 27 September 2019 01:00 CEST | Update | - |
| article html file updated | 3 May 2019 02:49 CEST | Update | - |
| article html file updated | 30 September 2017 07:51 CEST | Update | - |
| article html file updated | 11 September 2017 14:13 CEST | Original file | - |
| article xml uploaded. | 11 September 2017 14:12 CEST | Update | https://www.mdpi.com/2079-9292/6/3/67/xml |
| article xml uploaded. | 11 September 2017 14:12 CEST | Update | - |
| article xml uploaded. | 11 September 2017 14:12 CEST | Original file | - |
| article pdf uploaded. | 11 September 2017 14:12 CEST | Updated version of record | https://www.mdpi.com/2079-9292/6/3/67/pdf |
| article pdf uploaded. | 8 September 2017 14:40 CEST | Version of Record | https://www.mdpi.com/2079-9292/6/3/67/pdf-vor |
