| article html file updated | 8 February 2020 08:21 CET | Update | https://www.mdpi.com/2073-4441/9/6/433 |
| article html file updated | 25 September 2019 08:47 CEST | Update | N/A |
| article html file updated | 3 May 2019 17:20 CEST | Update | N/A |
| article html file updated | 29 June 2017 12:18 CEST | Update | N/A |
| article html file updated | 15 June 2017 15:12 CEST | Original file | N/A |
| article xml uploaded. | 15 June 2017 15:11 CEST | Original file | https://www.mdpi.com/2073-4441/9/6/433/xml |
| article pdf uploaded. | 15 June 2017 15:11 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/6/433/pdf |
