| article html file updated | 8 February 2020 08:25 CET | Update | https://www.mdpi.com/2079-9292/6/2/47 |
| article html file updated | 25 September 2019 09:07 CEST | Update | - |
| article html file updated | 3 May 2019 17:14 CEST | Update | - |
| article html file updated | 28 June 2017 13:04 CEST | Update | - |
| article html file updated | 15 June 2017 14:20 CEST | Original file | - |
| article xml uploaded. | 15 June 2017 14:19 CEST | Original file | https://www.mdpi.com/2079-9292/6/2/47/xml |
| article pdf uploaded. | 15 June 2017 14:19 CEST | Version of Record | https://www.mdpi.com/2079-9292/6/2/47/pdf |
