| article html file updated | 8 February 2020 08:09 CET | Update | https://www.mdpi.com/2079-9292/6/2/45 |
| article html file updated | 25 September 2019 07:43 CEST | Update | - |
| article html file updated | 3 May 2019 17:42 CEST | Update | - |
| article html file updated | 28 June 2017 13:04 CEST | Update | - |
| article html file updated | 13 June 2017 12:43 CEST | Original file | - |
| article xml uploaded. | 13 June 2017 12:42 CEST | Update | https://www.mdpi.com/2079-9292/6/2/45/xml |
| article pdf uploaded. | 13 June 2017 12:42 CEST | Updated version of record | https://www.mdpi.com/2079-9292/6/2/45/pdf |
| article pdf uploaded. | 13 June 2017 11:03 CEST | Version of Record | https://www.mdpi.com/2079-9292/6/2/45/pdf-vor |
