| article html file updated | 8 February 2020 06:36 CET | Update | https://www.mdpi.com/2073-4441/9/6/368 |
| article html file updated | 24 September 2019 23:46 CEST | Update | N/A |
| article html file updated | 3 May 2019 20:36 CEST | Update | N/A |
| article html file updated | 29 June 2017 12:05 CEST | Update | N/A |
| article html file updated | 24 May 2017 14:08 CEST | Original file | N/A |
| article xml uploaded. | 24 May 2017 14:07 CEST | Original file | https://www.mdpi.com/2073-4441/9/6/368/xml |
| article pdf uploaded. | 24 May 2017 14:06 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/6/368/pdf |
