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| article html file updated | 7 June 2018 07:32 CEST | Original file | N/A |
| article pdf uploaded. | 7 June 2018 07:31 CEST | Updated version of record | https://www.mdpi.com/1424-8220/18/6/1840/pdf |
| article xml uploaded. | 7 June 2018 07:31 CEST | Update | https://www.mdpi.com/1424-8220/18/6/1840/xml |
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| article pdf uploaded. | 5 June 2018 15:44 CEST | Updated version of record | https://www.mdpi.com/1424-8220/18/6/1840/pdf-vor |
| article pdf uploaded. | 5 June 2018 15:43 CEST | Version of Record | https://www.mdpi.com/1424-8220/18/6/1840/pdf-vor |
| article xml file uploaded | 5 June 2018 15:43 CEST | Original file | N/A |