| article html file updated | 5 February 2020 09:33 CET | Update | https://www.mdpi.com/1422-0067/8/7/628 |
| article html file updated | 9 May 2019 17:01 CEST | Update | N/A |
| article html file updated | 19 March 2019 12:35 CET | Update | N/A |
| article html file updated | 22 July 2013 08:31 CEST | Original file | N/A |
| article xml file uploaded | 22 July 2013 08:31 CEST | Original file | https://www.mdpi.com/1422-0067/8/7/628/xml |
