| article html file updated | 8 February 2020 07:53 CET | Update | https://www.mdpi.com/2073-4441/9/6/414 |
| article html file updated | 25 September 2019 06:21 CEST | Update | N/A |
| article html file updated | 3 May 2019 18:12 CEST | Update | N/A |
| article html file updated | 29 June 2017 12:14 CEST | Update | N/A |
| article html file updated | 9 June 2017 13:11 CEST | Original file | N/A |
| article xml uploaded. | 9 June 2017 13:09 CEST | Original file | https://www.mdpi.com/2073-4441/9/6/414/xml |
| article pdf uploaded. | 9 June 2017 13:09 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/6/414/pdf |
