| article html file updated | 8 February 2020 08:40 CET | Update | https://www.mdpi.com/2076-2615/7/6/47 |
| article html file updated | 25 September 2019 10:23 CEST | Update | - |
| article html file updated | 3 May 2019 16:45 CEST | Update | - |
| article html file updated | 27 June 2017 09:24 CEST | Update | - |
| article html file updated | 19 June 2017 10:38 CEST | Original file | - |
| article xml uploaded. | 19 June 2017 10:37 CEST | Original file | https://www.mdpi.com/2076-2615/7/6/47/xml |
| article pdf uploaded. | 19 June 2017 10:37 CEST | Version of Record | https://www.mdpi.com/2076-2615/7/6/47/pdf |
