| article html file updated | 6 February 2020 19:17 CET | Update | https://www.mdpi.com/1999-4893/8/2/280 |
| article html file updated | 6 May 2019 18:35 CEST | Update | - |
| article html file updated | 26 March 2019 04:00 CET | Update | - |
| article html file updated | 21 August 2015 13:03 CEST | Update | - |
| article html file updated | 8 July 2015 10:59 CEST | Original file | - |
| article xml file uploaded | 8 July 2015 10:59 CEST | Original file | https://www.mdpi.com/1999-4893/8/2/280/xml |
| article pdf uploaded. | 2 June 2015 15:34 CEST | Version of Record | https://www.mdpi.com/1999-4893/8/2/280/pdf |
