| article html file updated | 6 February 2020 17:32 CET | Update | https://www.mdpi.com/2075-4442/3/2/256 |
| article html file updated | 6 May 2019 22:12 CEST | Update | - |
| article html file updated | 26 March 2019 00:26 CET | Update | - |
| article html file updated | 3 September 2015 10:17 CEST | Original file | - |
| article xml file uploaded | 3 September 2015 10:17 CEST | Original file | https://www.mdpi.com/2075-4442/3/2/256/xml |
| article pdf uploaded. | 13 April 2015 10:57 CEST | Version of Record | https://www.mdpi.com/2075-4442/3/2/256/pdf |
