| article html file updated | 9 February 2020 12:46 CET | Update | https://www.mdpi.com/2075-4701/8/4/244 |
| article html file updated | 2 October 2019 08:21 CEST | Update | N/A |
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| article html file updated | 17 April 2019 05:44 CEST | Update | N/A |
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| article html file updated | 7 April 2018 10:25 CEST | Update | N/A |
| article xml uploaded. | 7 April 2018 10:24 CEST | Update | https://www.mdpi.com/2075-4701/8/4/244/xml |
| article pdf uploaded. | 7 April 2018 10:24 CEST | Updated version of record | https://www.mdpi.com/2075-4701/8/4/244/pdf |
| article html file updated | 6 April 2018 10:03 CEST | Original file | N/A |
| article pdf uploaded. | 6 April 2018 10:02 CEST | Version of Record | https://www.mdpi.com/2075-4701/8/4/244/pdf-vor |