| article html file updated | 7 February 2020 06:54 CET | Update | https://www.mdpi.com/2079-6412/6/2/17 |
| article html file updated | 5 May 2019 19:25 CEST | Update | - |
| article html file updated | 27 March 2019 01:11 CET | Update | - |
| article html file updated | 27 June 2016 12:30 CEST | Update | - |
| article html file updated | 7 April 2016 09:07 CEST | Original file | - |
| article xml uploaded. | 7 April 2016 09:06 CEST | Update | https://www.mdpi.com/2079-6412/6/2/17/xml |
| article pdf uploaded. | 7 April 2016 09:06 CEST | Version of Record | https://www.mdpi.com/2079-6412/6/2/17/pdf |
