| article html file updated | 7 February 2020 12:35 CET | Update | https://www.mdpi.com/2079-6412/6/3/33 |
| article html file updated | 5 May 2019 08:31 CEST | Update | - |
| article html file updated | 27 March 2019 11:55 CET | Update | - |
| article html file updated | 29 September 2016 11:50 CEST | Update | - |
| article html file updated | 29 September 2016 10:03 CEST | Update | - |
| article html file updated | 29 July 2016 13:20 CEST | Original file | - |
| article xml uploaded. | 29 July 2016 13:13 CEST | Original file | https://www.mdpi.com/2079-6412/6/3/33/xml |
| article pdf uploaded. | 29 July 2016 13:13 CEST | Version of Record | https://www.mdpi.com/2079-6412/6/3/33/pdf |
