| article html file updated | 6 February 2020 00:34 CET | Update | https://www.mdpi.com/2079-4983/4/1/27 |
| article html file updated | 8 May 2019 08:23 CEST | Update | - |
| article html file updated | 20 March 2019 18:41 CET | Update | - |
| article html file updated | 17 June 2015 06:36 CEST | Update | - |
| article html file updated | 28 April 2014 10:49 CEST | Original file | - |
| article xml file uploaded | 28 April 2014 10:49 CEST | Original file | https://www.mdpi.com/2079-4983/4/1/27/xml |
| article pdf uploaded. | 21 February 2013 15:03 CET | Updated version of record | https://www.mdpi.com/2079-4983/4/1/27/pdf |
| article pdf uploaded. | 18 February 2013 09:56 CET | Version of Record | https://www.mdpi.com/2079-4983/4/1/27/pdf-vor |
