| article html file updated | 9 February 2020 11:28 CET | Update | https://www.mdpi.com/2075-4701/8/4/219 |
| article html file updated | 2 October 2019 00:36 CEST | Update | - |
| article html file updated | 1 May 2019 08:17 CEST | Update | - |
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| article html file updated | 1 May 2018 07:22 CEST | Update | - |
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| article html file updated | 27 March 2018 17:07 CEST | Original file | - |
| article xml uploaded. | 27 March 2018 16:03 CEST | Original file | https://www.mdpi.com/2075-4701/8/4/219/xml |
| article pdf uploaded. | 27 March 2018 16:03 CEST | Version of Record | https://www.mdpi.com/2075-4701/8/4/219/pdf |
