| article html file updated | 11 February 2020 22:13 CET | Update | https://www.mdpi.com/2071-1050/11/6/1557 |
| article html file updated | 16 October 2019 14:36 CEST | Update | - |
| article html file updated | 26 April 2019 03:12 CEST | Update | - |
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| article html file updated | 14 March 2019 11:34 CET | Original file | - |
| article pdf uploaded. | 14 March 2019 11:33 CET | Version of Record | https://www.mdpi.com/2071-1050/11/6/1557/pdf |
| article xml uploaded. | 14 March 2019 11:33 CET | Update | https://www.mdpi.com/2071-1050/11/6/1557/xml |
| article xml file uploaded | 14 March 2019 11:33 CET | Original file | - |
