| article html file updated | 7 February 2020 08:59 CET | Update | https://www.mdpi.com/2304-6732/3/2/31 |
| article html file updated | 5 May 2019 15:14 CEST | Update | - |
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| article html file updated | 1 July 2016 13:34 CEST | Update | - |
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| article xml uploaded. | 20 May 2016 09:53 CEST | Original file | https://www.mdpi.com/2304-6732/3/2/31/xml |
| article pdf uploaded. | 20 May 2016 09:53 CEST | Version of Record | https://www.mdpi.com/2304-6732/3/2/31/pdf |
