| article html file updated | 8 February 2020 09:49 CET | Update | https://www.mdpi.com/2079-9292/6/3/49 |
| article html file updated | 25 September 2019 16:40 CEST | Update | N/A |
| article html file updated | 3 May 2019 14:35 CEST | Update | N/A |
| article html file updated | 30 September 2017 07:52 CEST | Update | N/A |
| article html file updated | 1 July 2017 11:08 CEST | Original file | N/A |
| article xml uploaded. | 1 July 2017 11:07 CEST | Original file | https://www.mdpi.com/2079-9292/6/3/49/xml |
| article pdf uploaded. | 1 July 2017 11:07 CEST | Version of Record | https://www.mdpi.com/2079-9292/6/3/49/pdf |
