| article html file updated | 7 February 2020 07:19 CET | Update | https://www.mdpi.com/2075-4450/7/2/15 |
| article html file updated | 5 May 2019 18:31 CEST | Update | - |
| article html file updated | 27 March 2019 02:00 CET | Update | - |
| article html file updated | 4 July 2016 10:35 CEST | Update | - |
| article html file updated | 15 April 2016 11:24 CEST | Original file | - |
| article xml uploaded. | 15 April 2016 11:23 CEST | Update | https://www.mdpi.com/2075-4450/7/2/15/xml |
| article pdf uploaded. | 15 April 2016 11:23 CEST | Version of Record | https://www.mdpi.com/2075-4450/7/2/15/pdf |
