| article html file updated | 6 February 2020 13:58 CET | Update | https://www.mdpi.com/2075-4442/2/4/206 |
| article html file updated | 7 May 2019 04:53 CEST | Update | - |
| article html file updated | 25 March 2019 18:22 CET | Update | - |
| article html file updated | 21 August 2015 02:47 CEST | Update | - |
| article html file updated | 18 December 2014 11:38 CET | Original file | - |
| article xml file uploaded | 18 December 2014 11:38 CET | Original file | https://www.mdpi.com/2075-4442/2/4/206/xml |
| article pdf uploaded. | 27 November 2014 08:50 CET | Updated version of record | https://www.mdpi.com/2075-4442/2/4/206/pdf |
| article pdf uploaded. | 26 November 2014 16:35 CET | Version of Record | https://www.mdpi.com/2075-4442/2/4/206/pdf-vor |
