| article html file updated | 6 February 2020 07:05 CET | Update | https://www.mdpi.com/2079-6412/4/1/98 |
| article html file updated | 7 May 2019 19:01 CEST | Update | - |
| article html file updated | 21 March 2019 11:54 CET | Update | - |
| article html file updated | 18 May 2016 12:33 CEST | Update | - |
| article html file updated | 19 August 2015 19:26 CEST | Update | - |
| article html file updated | 24 June 2014 12:04 CEST | Original file | - |
| article xml file uploaded | 24 June 2014 12:04 CEST | Original file | https://www.mdpi.com/2079-6412/4/1/98/xml |
| article pdf uploaded. | 10 February 2014 15:27 CET | Updated version of record | https://www.mdpi.com/2079-6412/4/1/98/pdf |
| article pdf uploaded. | 29 January 2014 14:25 CET | Version of Record | https://www.mdpi.com/2079-6412/4/1/98/pdf-vor |
