| article html file updated | 8 February 2020 05:56 CET | Update | https://www.mdpi.com/1999-4923/9/2/16 |
| article html file updated | 24 September 2019 20:21 CEST | Update | - |
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| article html file updated | 29 June 2017 12:44 CEST | Update | - |
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| article html file updated | 16 May 2017 10:29 CEST | Original file | - |
| article xml uploaded. | 16 May 2017 10:27 CEST | Original file | https://www.mdpi.com/1999-4923/9/2/16/xml |
| article pdf uploaded. | 16 May 2017 10:27 CEST | Version of Record | https://www.mdpi.com/1999-4923/9/2/16/pdf |
