| article html file updated | 7 February 2020 12:45 CET | Update | https://www.mdpi.com/2076-2615/6/8/47 |
| article html file updated | 5 May 2019 08:10 CEST | Update | N/A |
| article html file updated | 27 March 2019 12:22 CET | Update | N/A |
| article html file updated | 25 August 2016 06:30 CEST | Update | N/A |
| article html file updated | 3 August 2016 09:18 CEST | Original file | N/A |
| article xml uploaded. | 3 August 2016 09:17 CEST | Original file | https://www.mdpi.com/2076-2615/6/8/47/xml |
| article pdf uploaded. | 3 August 2016 09:17 CEST | Version of Record | https://www.mdpi.com/2076-2615/6/8/47/pdf |
