| article html file updated | 5 February 2020 23:33 CET | Update | https://www.mdpi.com/1422-0067/14/1/1 |
| article html file updated | 8 May 2019 10:48 CEST | Update | N/A |
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| article html file updated | 8 February 2013 11:52 CET | Original file | N/A |
| article xml file uploaded | 8 February 2013 11:52 CET | Original file | https://www.mdpi.com/1422-0067/14/1/1/xml |
