| article html file updated | 5 February 2020 22:54 CET | Update | https://www.mdpi.com/2072-666X/3/4/615 |
| article html file updated | 8 May 2019 12:27 CEST | Update | - |
| article html file updated | 20 March 2019 14:46 CET | Update | - |
| article html file updated | 17 June 2015 03:52 CEST | Update | - |
| article html file updated | 14 November 2014 11:01 CET | Original file | - |
| article xml file uploaded | 14 November 2014 11:01 CET | Original file | https://www.mdpi.com/2072-666X/3/4/615/xml |
