| article html file updated | 5 February 2020 23:34 CET | Update | https://www.mdpi.com/1422-0067/14/1/57 |
| article html file updated | 8 May 2019 10:47 CEST | Update | - |
| article html file updated | 20 March 2019 16:13 CET | Update | - |
| article html file updated | 17 June 2015 04:57 CEST | Update | - |
| article html file updated | 14 August 2014 12:05 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:05 CEST | Update | https://www.mdpi.com/1422-0067/14/1/57/xml |
| article html file updated | 8 February 2013 11:54 CET | Original file | - |
| article xml file uploaded | 8 February 2013 11:53 CET | Original file | - |
