| article html file updated | 5 February 2020 20:36 CET | Update | https://www.mdpi.com/2073-4409/1/2/141 |
| article html file updated | 8 May 2019 17:46 CEST | Update | N/A |
| article html file updated | 25 March 2019 11:34 CET | Update | N/A |
| article html file updated | 17 June 2015 00:09 CEST | Update | N/A |
| article html file updated | 30 August 2013 09:04 CEST | Update | N/A |
| article xml file uploaded | 30 August 2013 09:04 CEST | Original file | https://www.mdpi.com/2073-4409/1/2/141/xml |
| article html file updated | 7 February 2013 12:33 CET | Update | N/A |
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| article html file updated | 26 January 2013 10:48 CET | Update | N/A |
| article html file updated | 23 January 2013 18:34 CET | Original file | N/A |
