| article html file updated | 8 February 2020 05:43 CET | Update | https://www.mdpi.com/2306-5338/4/2/28 |
| article html file updated | 24 September 2019 19:08 CEST | Update | - |
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| article html file updated | 23 May 2017 04:07 CEST | Update | - |
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| article xml uploaded. | 12 May 2017 15:40 CEST | Original file | https://www.mdpi.com/2306-5338/4/2/28/xml |
| article pdf uploaded. | 12 May 2017 15:40 CEST | Version of Record | https://www.mdpi.com/2306-5338/4/2/28/pdf |
