| article html file updated | 6 February 2020 07:33 CET | Update | https://www.mdpi.com/2075-1729/4/1/105 |
| article html file updated | 7 May 2019 18:02 CEST | Update | - |
| article html file updated | 21 March 2019 13:03 CET | Update | - |
| article html file updated | 19 August 2015 21:54 CEST | Update | - |
| article html file updated | 26 August 2014 04:21 CEST | Original file | - |
| article xml file uploaded | 26 August 2014 04:21 CEST | Original file | https://www.mdpi.com/2075-1729/4/1/105/xml |
| article pdf uploaded. | 28 February 2014 16:04 CET | Updated version of record | https://www.mdpi.com/2075-1729/4/1/105/pdf |
| article pdf uploaded. | 27 February 2014 09:39 CET | Version of Record | https://www.mdpi.com/2075-1729/4/1/105/pdf-vor |
