| article html file updated | 5 February 2020 20:57 CET | Update | https://www.mdpi.com/1424-8247/5/7/674 |
| article html file updated | 8 May 2019 16:58 CEST | Update | N/A |
| article html file updated | 25 March 2019 12:20 CET | Update | N/A |
| article html file updated | 17 June 2015 00:42 CEST | Update | N/A |
| article html file updated | 6 August 2013 16:05 CEST | Update | N/A |
| article xml file uploaded | 6 August 2013 16:05 CEST | Original file | https://www.mdpi.com/1424-8247/5/7/674/xml |
| article html file updated | 7 February 2013 13:11 CET | Update | N/A |
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| article html file updated | 6 February 2013 08:30 CET | Update | N/A |
| article html file updated | 29 January 2013 04:58 CET | Update | N/A |
| article html file updated | 26 January 2013 11:37 CET | Update | N/A |
| article html file updated | 23 January 2013 20:54 CET | Original file | N/A |
