| article html file updated | 5 February 2020 23:35 CET | Update | https://www.mdpi.com/1422-0067/14/1/273 |
| article html file updated | 8 May 2019 10:44 CEST | Update | - |
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| article xml file uploaded | 8 February 2013 12:02 CET | Original file | https://www.mdpi.com/1422-0067/14/1/273/xml |
| article pdf uploaded. | 24 January 2013 08:51 CET | Version of Record | https://www.mdpi.com/1422-0067/14/1/273/pdf |
