| article html file updated | 16 June 2015 19:28 CEST | Update | https://www.mdpi.com/1424-8247/4/10/1381 |
| article html file updated | 17 June 2014 04:42 CEST | Update | N/A |
| article xml file uploaded | 17 June 2014 04:42 CEST | Original file | https://www.mdpi.com/1424-8247/4/10/1381/xml |
| article html file updated | 6 February 2013 23:11 CET | Update | N/A |
| article html file updated | 6 February 2013 02:58 CET | Update | N/A |
| article html file updated | 29 January 2013 00:17 CET | Update | N/A |
| article html file updated | 26 January 2013 05:47 CET | Update | N/A |
| article html file updated | 23 January 2013 00:42 CET | Original file | N/A |
