| article html file updated | 8 February 2020 08:50 CET | Update | https://www.mdpi.com/2073-4441/9/6/448 |
| article html file updated | 25 September 2019 11:15 CEST | Update | N/A |
| article html file updated | 3 May 2019 16:26 CEST | Update | N/A |
| article html file updated | 29 June 2017 12:20 CEST | Update | N/A |
| article html file updated | 22 June 2017 06:24 CEST | Original file | N/A |
| article xml uploaded. | 22 June 2017 06:23 CEST | Update | https://www.mdpi.com/2073-4441/9/6/448/xml |
| article pdf uploaded. | 22 June 2017 06:23 CEST | Updated version of record | https://www.mdpi.com/2073-4441/9/6/448/pdf |
| article pdf uploaded. | 21 June 2017 16:23 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/6/448/pdf-vor |
