| article html file updated | 5 February 2020 10:52 CET | Update | https://www.mdpi.com/1660-4601/2/2/214 |
| article html file updated | 9 May 2019 14:15 CEST | Update | N/A |
| article html file updated | 19 March 2019 15:43 CET | Update | N/A |
| article html file updated | 29 October 2013 08:08 CET | Original file | N/A |
| article xml file uploaded | 29 October 2013 08:08 CET | Original file | https://www.mdpi.com/1660-4601/2/2/214/xml |
