| article html file updated | 7 February 2020 10:52 CET | Update | https://www.mdpi.com/2226-4787/4/3/22 |
| article html file updated | 5 May 2019 11:39 CEST | Update | - |
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| article html file updated | 29 September 2016 09:42 CEST | Update | - |
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| article xml uploaded. | 28 June 2016 09:31 CEST | Original file | https://www.mdpi.com/2226-4787/4/3/22/xml |
| article pdf uploaded. | 28 June 2016 09:31 CEST | Version of Record | https://www.mdpi.com/2226-4787/4/3/22/pdf |
