| article html file updated | 8 January 2020 19:36 CET | Update | https://www.mdpi.com/1424-8220/13/1/137 |
| article html file updated | 19 September 2019 16:03 CEST | Update | N/A |
| article html file updated | 3 March 2017 22:49 CET | Update | N/A |
| article html file updated | 17 June 2015 05:01 CEST | Update | N/A |
| article html file updated | 30 October 2013 11:44 CET | Update | N/A |
| article xml file uploaded | 30 October 2013 11:44 CET | Update | https://www.mdpi.com/1424-8220/13/1/137/xml |
| article html file updated | 30 October 2013 09:09 CET | Update | N/A |
| article xml file uploaded | 30 October 2013 09:09 CET | Update | N/A |
| article html file updated | 23 April 2013 14:34 CEST | Update | N/A |
| article xml file uploaded | 23 April 2013 14:34 CEST | Update | N/A |
| article html file updated | 26 March 2013 10:48 CET | Update | N/A |
| article xml file uploaded | 26 March 2013 10:48 CET | Update | N/A |
| article html file updated | 5 March 2013 16:34 CET | Update | N/A |
| article xml file uploaded | 5 March 2013 16:34 CET | Update | N/A |
| article html file updated | 22 February 2013 08:04 CET | Original file | N/A |
| article xml file uploaded | 22 February 2013 08:04 CET | Original file | N/A |