| article html file updated | 5 February 2020 23:01 CET | Update | https://www.mdpi.com/1660-4601/9/12/4241 |
| article html file updated | 19 September 2019 15:06 CEST | Update | N/A |
| article html file updated | 8 May 2019 12:06 CEST | Update | N/A |
| article html file updated | 20 March 2019 15:04 CET | Update | N/A |
| article html file updated | 17 June 2015 04:06 CEST | Update | N/A |
| article html file updated | 7 February 2013 16:49 CET | Update | N/A |
| article html file updated | 29 January 2013 15:47 CET | Update | N/A |
| article xml file uploaded | 29 January 2013 15:47 CET | Original file | https://www.mdpi.com/1660-4601/9/12/4241/xml |
| article html file updated | 24 January 2013 08:55 CET | Original file | N/A |
