| article html file updated | 5 February 2020 11:13 CET | Update | https://www.mdpi.com/1660-3397/2/3/123 |
| article html file updated | 9 May 2019 13:32 CEST | Update | N/A |
| article html file updated | 19 March 2019 16:28 CET | Update | N/A |
| article html file updated | 26 September 2013 13:37 CEST | Original file | N/A |
| article xml file uploaded | 26 September 2013 13:36 CEST | Original file | https://www.mdpi.com/1660-3397/2/3/123/xml |
