| article html file updated | 6 February 2020 17:29 CET | Update | https://www.mdpi.com/2075-4701/5/2/591 |
| article html file updated | 6 May 2019 22:17 CEST | Update | - |
| article html file updated | 26 March 2019 00:22 CET | Update | - |
| article html file updated | 21 August 2015 10:14 CEST | Update | - |
| article html file updated | 7 July 2015 12:52 CEST | Original file | - |
| article xml file uploaded | 7 July 2015 12:52 CEST | Original file | https://www.mdpi.com/2075-4701/5/2/591/xml |
| article pdf uploaded. | 10 April 2015 09:53 CEST | Version of Record | https://www.mdpi.com/2075-4701/5/2/591/pdf |
