| article html file updated | 6 February 2020 21:57 CET | Update | https://www.mdpi.com/2073-4360/7/8/1470 |
| article html file updated | 6 May 2019 13:06 CEST | Update | - |
| article html file updated | 26 March 2019 09:07 CET | Original file | - |
| article xml file uploaded | 1 September 2015 11:38 CEST | Original file | https://www.mdpi.com/2073-4360/7/8/1470/xml |
| article pdf uploaded. | 20 August 2015 14:06 CEST | Version of Record | https://www.mdpi.com/2073-4360/7/8/1470/pdf |
