| article html file updated | 8 February 2020 16:02 CET | Update | https://www.mdpi.com/2076-2615/7/9/71 |
| article html file updated | 27 September 2019 02:37 CEST | Update | - |
| article html file updated | 3 May 2019 02:16 CEST | Update | - |
| article html file updated | 30 September 2017 10:15 CEST | Update | - |
| article html file updated | 13 September 2017 09:58 CEST | Original file | - |
| article xml uploaded. | 13 September 2017 09:56 CEST | Original file | https://www.mdpi.com/2076-2615/7/9/71/xml |
| article pdf uploaded. | 13 September 2017 09:56 CEST | Version of Record | https://www.mdpi.com/2076-2615/7/9/71/pdf |
