| article html file updated | 7 February 2020 07:52 CET | Update | https://www.mdpi.com/2079-7737/5/2/16 |
| article html file updated | 5 May 2019 17:25 CEST | Update | - |
| article html file updated | 27 March 2019 03:07 CET | Update | - |
| article html file updated | 1 July 2016 12:14 CEST | Update | - |
| article html file updated | 27 April 2016 11:39 CEST | Original file | - |
| article xml uploaded. | 27 April 2016 11:31 CEST | Update | https://www.mdpi.com/2079-7737/5/2/16/xml |
| article pdf uploaded. | 27 April 2016 11:31 CEST | Version of Record | https://www.mdpi.com/2079-7737/5/2/16/pdf |
