| article html file updated | 9 February 2020 05:07 CET | Update | https://www.mdpi.com/1424-8220/18/2/423 |
| article html file updated | 30 September 2019 10:09 CEST | Update | - |
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| article html file updated | 14 March 2018 18:50 CET | Update | - |
| article html file updated | 6 February 2018 08:33 CET | Update | - |
| article xml uploaded. | 6 February 2018 08:31 CET | Update | https://www.mdpi.com/1424-8220/18/2/423/xml |
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| article html file updated | 1 February 2018 08:52 CET | Original file | - |
| article xml uploaded. | 1 February 2018 08:47 CET | Update | - |
| article xml uploaded. | 1 February 2018 08:47 CET | Update | - |
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| article pdf uploaded. | 1 February 2018 08:47 CET | Version of Record | https://www.mdpi.com/1424-8220/18/2/423/pdf |
