| article html file updated | 8 February 2020 14:13 CET | Update | https://www.mdpi.com/2079-9292/6/3/61 |
| article html file updated | 26 September 2019 16:45 CEST | Update | - |
| article html file updated | 3 May 2019 05:38 CEST | Update | - |
| article html file updated | 30 September 2017 07:50 CEST | Update | - |
| article html file updated | 23 August 2017 09:15 CEST | Original file | - |
| article xml uploaded. | 23 August 2017 09:14 CEST | Update | https://www.mdpi.com/2079-9292/6/3/61/xml |
| article xml uploaded. | 23 August 2017 09:14 CEST | Original file | - |
| article pdf uploaded. | 23 August 2017 09:14 CEST | Version of Record | https://www.mdpi.com/2079-9292/6/3/61/pdf |
