| article html file updated | 8 February 2020 07:13 CET | Update | https://www.mdpi.com/2073-4441/9/6/391 |
| article html file updated | 25 September 2019 02:54 CEST | Update | N/A |
| article html file updated | 3 May 2019 19:28 CEST | Update | N/A |
| article html file updated | 29 June 2017 12:10 CEST | Update | N/A |
| article html file updated | 8 June 2017 12:01 CEST | Original file | N/A |
| article xml uploaded. | 8 June 2017 12:00 CEST | Update | https://www.mdpi.com/2073-4441/9/6/391/xml |
| article pdf uploaded. | 8 June 2017 12:00 CEST | Updated version of record | https://www.mdpi.com/2073-4441/9/6/391/pdf |
| article pdf uploaded. | 1 June 2017 13:56 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/6/391/pdf-vor |
