| article html file updated | 9 February 2020 13:27 CET | Update | https://www.mdpi.com/2075-4701/8/4/261 |
| article html file updated | 2 October 2019 12:37 CEST | Update | N/A |
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| article xml uploaded. | 11 April 2018 17:44 CEST | Update | https://www.mdpi.com/2075-4701/8/4/261/xml |
| article pdf uploaded. | 11 April 2018 17:44 CEST | Version of Record | https://www.mdpi.com/2075-4701/8/4/261/pdf |