| article html file updated | 5 February 2020 20:20 CET | Update | https://www.mdpi.com/2073-4409/1/2/74 |
| article html file updated | 8 May 2019 18:22 CEST | Update | N/A |
| article html file updated | 25 March 2019 10:59 CET | Update | N/A |
| article html file updated | 16 June 2015 23:42 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/2073-4409/1/2/74/xml |
| article html file updated | 7 February 2013 12:09 CET | Update | N/A |
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| article html file updated | 29 January 2013 03:12 CET | Update | N/A |
| article html file updated | 26 January 2013 10:15 CET | Update | N/A |
| article html file updated | 23 January 2013 17:04 CET | Original file | N/A |
