| article html file updated | 6 February 2020 07:08 CET | Update | https://www.mdpi.com/2227-7382/2/1/53 |
| article html file updated | 7 May 2019 18:55 CEST | Update | - |
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| article html file updated | 24 June 2014 12:23 CEST | Original file | - |
| article xml file uploaded | 24 June 2014 12:23 CEST | Original file | https://www.mdpi.com/2227-7382/2/1/53/xml |
| article pdf uploaded. | 7 February 2014 09:07 CET | Version of Record | https://www.mdpi.com/2227-7382/2/1/53/pdf |
