| article html file updated | 6 February 2020 01:05 CET | Update | https://www.mdpi.com/2079-6374/3/1/157 |
| article html file updated | 8 May 2019 07:10 CEST | Update | - |
| article html file updated | 20 March 2019 20:00 CET | Update | - |
| article html file updated | 17 June 2015 07:43 CEST | Update | - |
| article html file updated | 26 August 2014 03:59 CEST | Original file | - |
| article xml file uploaded | 26 August 2014 03:59 CEST | Original file | https://www.mdpi.com/2079-6374/3/1/157/xml |
| article pdf uploaded. | 19 March 2013 14:05 CET | Version of Record | https://www.mdpi.com/2079-6374/3/1/157/pdf |
