| article html file updated | 6 February 2020 11:52 CET | Update | https://www.mdpi.com/2073-4441/6/9/2634 |
| article html file updated | 7 May 2019 08:58 CEST | Update | N/A |
| article html file updated | 22 March 2019 00:00 CET | Update | N/A |
| article html file updated | 20 August 2015 16:54 CEST | Update | N/A |
| article html file updated | 30 September 2014 08:08 CEST | Original file | N/A |
| article xml file uploaded | 30 September 2014 08:08 CEST | Original file | https://www.mdpi.com/2073-4441/6/9/2634/xml |
| article pdf uploaded. | 29 August 2014 08:46 CEST | Version of Record | https://www.mdpi.com/2073-4441/6/9/2634/pdf |
