| article html file updated | 8 February 2020 22:49 CET | Update | https://www.mdpi.com/2305-6304/5/4/36 |
| article html file updated | 28 September 2019 21:53 CEST | Update | - |
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| article html file updated | 1 December 2017 14:24 CET | Original file | - |
| article xml uploaded. | 1 December 2017 14:22 CET | Original file | https://www.mdpi.com/2305-6304/5/4/36/xml |
| article pdf uploaded. | 1 December 2017 14:22 CET | Version of Record | https://www.mdpi.com/2305-6304/5/4/36/pdf |
