| article html file updated | 6 February 2020 23:11 CET | Update | https://www.mdpi.com/2073-8994/7/4/1670 |
| article html file updated | 6 May 2019 10:32 CEST | Update | - |
| article html file updated | 26 March 2019 11:29 CET | Update | - |
| article html file updated | 28 October 2015 11:04 CET | Original file | - |
| article xml file uploaded | 28 October 2015 11:04 CET | Original file | https://www.mdpi.com/2073-8994/7/4/1670/xml |
| article pdf uploaded. | 24 September 2015 14:57 CEST | Version of Record | https://www.mdpi.com/2073-8994/7/4/1670/pdf |
