| article html file updated | 9 February 2020 00:12 CET | Update | https://www.mdpi.com/2073-4441/9/12/981 |
| article html file updated | 29 September 2019 05:57 CEST | Update | - |
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| article html file updated | 15 December 2017 16:48 CET | Original file | - |
| article xml uploaded. | 15 December 2017 16:47 CET | Update | https://www.mdpi.com/2073-4441/9/12/981/xml |
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| article pdf uploaded. | 15 December 2017 16:47 CET | Updated version of record | https://www.mdpi.com/2073-4441/9/12/981/pdf |
| article pdf uploaded. | 15 December 2017 12:15 CET | Version of Record | - |