| article html file updated | 6 February 2020 17:53 CET | Update | https://www.mdpi.com/2304-6775/3/2/89 |
| article html file updated | 20 September 2019 20:28 CEST | Update | N/A |
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| article html file updated | 20 October 2015 09:17 CEST | Update | N/A |
| article xml file uploaded | 20 October 2015 09:17 CEST | Original file | https://www.mdpi.com/2304-6775/3/2/89/xml |
| article html file updated | 21 August 2015 10:56 CEST | Original file | N/A |
| article pdf uploaded. | 21 April 2015 15:17 CEST | Version of Record | https://www.mdpi.com/2304-6775/3/2/89/pdf |
