| article html file updated | 8 February 2020 23:06 CET | Update | https://www.mdpi.com/2071-1050/9/12/2239 |
| article html file updated | 28 September 2019 23:41 CEST | Update | - |
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| article html file updated | 13 December 2017 06:50 CET | Update | - |
| article xml uploaded. | 13 December 2017 06:48 CET | Update | https://www.mdpi.com/2071-1050/9/12/2239/xml |
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| article html file updated | 7 December 2017 10:30 CET | Update | - |
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| article pdf uploaded. | 7 December 2017 10:28 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/12/2239/pdf |
| article html file updated | 4 December 2017 17:10 CET | Original file | - |
| article xml uploaded. | 4 December 2017 17:08 CET | Update | - |
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| article pdf uploaded. | 4 December 2017 17:06 CET | Version of Record | https://www.mdpi.com/2071-1050/9/12/2239/pdf-vor |
