| article html file updated | 8 February 2020 18:24 CET | Update | https://www.mdpi.com/2075-5309/7/4/88 |
| article html file updated | 27 September 2019 18:01 CEST | Update | - |
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| article html file updated | 3 January 2018 08:57 CET | Update | - |
| article html file updated | 14 October 2017 22:49 CEST | Original file | - |
| article xml uploaded. | 13 October 2017 16:35 CEST | Original file | https://www.mdpi.com/2075-5309/7/4/88/xml |
| article pdf uploaded. | 13 October 2017 16:35 CEST | Version of Record | https://www.mdpi.com/2075-5309/7/4/88/pdf |
