| article html file updated | 5 February 2020 22:53 CET | Update | https://www.mdpi.com/2220-9964/1/3/294 |
| article html file updated | 8 May 2019 12:28 CEST | Update | - |
| article html file updated | 20 March 2019 14:45 CET | Update | - |
| article html file updated | 17 June 2015 03:51 CEST | Update | - |
| article html file updated | 14 August 2014 12:05 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:05 CEST | Original file | https://www.mdpi.com/2220-9964/1/3/294/xml |
| article html file updated | 7 February 2013 16:37 CET | Update | - |
| article html file updated | 24 January 2013 07:58 CET | Original file | - |
