| article html file updated | 7 February 2020 12:06 CET | Update | https://www.mdpi.com/2075-4418/6/3/28 |
| article html file updated | 5 May 2019 09:26 CEST | Update | - |
| article html file updated | 27 March 2019 11:02 CET | Update | - |
| article html file updated | 28 September 2016 22:51 CEST | Update | - |
| article html file updated | 21 July 2016 14:31 CEST | Original file | - |
| article xml uploaded. | 21 July 2016 14:30 CEST | Original file | https://www.mdpi.com/2075-4418/6/3/28/xml |
| article pdf uploaded. | 21 July 2016 14:30 CEST | Version of Record | https://www.mdpi.com/2075-4418/6/3/28/pdf |
