| article html file updated | 8 February 2020 08:33 CET | Update | https://www.mdpi.com/2079-9292/6/2/48 |
| article html file updated | 25 September 2019 09:50 CEST | Update | - |
| article html file updated | 3 May 2019 16:57 CEST | Update | - |
| article html file updated | 28 June 2017 13:04 CEST | Update | - |
| article html file updated | 19 June 2017 04:03 CEST | Original file | - |
| article xml uploaded. | 19 June 2017 04:02 CEST | Original file | https://www.mdpi.com/2079-9292/6/2/48/xml |
| article pdf uploaded. | 19 June 2017 04:02 CEST | Updated version of record | https://www.mdpi.com/2079-9292/6/2/48/pdf |
| article pdf uploaded. | 17 June 2017 11:14 CEST | Version of Record | https://www.mdpi.com/2079-9292/6/2/48/pdf-vor |
