| article html file updated | 8 February 2020 08:07 CET | Update | https://www.mdpi.com/2073-4441/9/6/425 |
| article html file updated | 25 September 2019 07:32 CEST | Update | N/A |
| article html file updated | 3 May 2019 17:46 CEST | Update | N/A |
| article html file updated | 29 June 2017 12:17 CEST | Update | N/A |
| article html file updated | 13 June 2017 07:54 CEST | Original file | N/A |
| article xml uploaded. | 13 June 2017 07:53 CEST | Original file | https://www.mdpi.com/2073-4441/9/6/425/xml |
| article pdf uploaded. | 13 June 2017 07:53 CEST | Updated version of record | https://www.mdpi.com/2073-4441/9/6/425/pdf |
| article pdf uploaded. | 12 June 2017 13:22 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/6/425/pdf-vor |
