| article html file updated | 8 February 2020 05:07 CET | Update | https://www.mdpi.com/2079-6374/7/2/18 |
| article html file updated | 3 May 2019 23:24 CEST | Update | - |
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| article html file updated | 28 June 2017 12:43 CEST | Update | - |
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| article html file updated | 5 May 2017 11:34 CEST | Original file | - |
| article xml uploaded. | 5 May 2017 11:33 CEST | Original file | https://www.mdpi.com/2079-6374/7/2/18/xml |
| article pdf uploaded. | 5 May 2017 11:33 CEST | Version of Record | https://www.mdpi.com/2079-6374/7/2/18/pdf |
