| article html file updated | 6 February 2020 02:25 CET | Update | https://www.mdpi.com/2073-4409/2/2/393 |
| article html file updated | 8 May 2019 04:30 CEST | Update | N/A |
| article html file updated | 20 March 2019 23:17 CET | Update | N/A |
| article html file updated | 17 June 2015 09:51 CEST | Update | N/A |
| article html file updated | 14 August 2014 11:41 CEST | Update | N/A |
| article xml file uploaded | 14 August 2014 11:41 CEST | Update | https://www.mdpi.com/2073-4409/2/2/393/xml |
| article html file updated | 14 August 2014 11:21 CEST | Update | N/A |
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| article html file updated | 3 March 2014 09:14 CET | Original file | N/A |
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| article pdf uploaded. | 31 May 2013 10:49 CEST | Version of Record | https://www.mdpi.com/2073-4409/2/2/393/pdf |
