| article html file updated | 7 February 2020 10:01 CET | Update | https://www.mdpi.com/2073-4441/8/6/249 |
| article html file updated | 5 May 2019 13:14 CEST | Update | N/A |
| article html file updated | 27 March 2019 07:13 CET | Update | N/A |
| article html file updated | 29 June 2016 12:21 CEST | Update | N/A |
| article html file updated | 10 June 2016 09:41 CEST | Original file | N/A |
| article xml uploaded. | 10 June 2016 09:39 CEST | Original file | https://www.mdpi.com/2073-4441/8/6/249/xml |
| article pdf uploaded. | 10 June 2016 09:39 CEST | Version of Record | https://www.mdpi.com/2073-4441/8/6/249/pdf |
