| article html file updated | 6 February 2020 20:39 CET | Update | https://www.mdpi.com/2304-8158/4/3/271 |
| article html file updated | 21 September 2019 00:12 CEST | Update | N/A |
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| article html file updated | 14 October 2015 09:49 CEST | Update | N/A |
| article xml file uploaded | 14 October 2015 09:49 CEST | Original file | https://www.mdpi.com/2304-8158/4/3/271/xml |
| article html file updated | 21 August 2015 14:49 CEST | Original file | N/A |
| article pdf uploaded. | 14 July 2015 14:36 CEST | Version of Record | https://www.mdpi.com/2304-8158/4/3/271/pdf |
