| article html file updated | 7 February 2020 09:21 CET | Update | https://www.mdpi.com/2077-0472/6/2/24 |
| article html file updated | 5 May 2019 14:33 CEST | Update | - |
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| article html file updated | 27 June 2016 12:18 CEST | Update | - |
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| article xml uploaded. | 26 May 2016 13:22 CEST | Original file | https://www.mdpi.com/2077-0472/6/2/24/xml |
| article pdf uploaded. | 26 May 2016 13:22 CEST | Version of Record | https://www.mdpi.com/2077-0472/6/2/24/pdf |
