| article html file updated | 8 February 2020 23:05 CET | Update | https://www.mdpi.com/2073-4441/9/12/942 |
| article html file updated | 28 September 2019 23:34 CEST | Update | - |
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| article html file updated | 2 January 2018 16:48 CET | Update | - |
| article html file updated | 4 December 2017 14:34 CET | Original file | - |
| article xml uploaded. | 4 December 2017 14:33 CET | Update | https://www.mdpi.com/2073-4441/9/12/942/xml |
| article xml uploaded. | 4 December 2017 14:33 CET | Original file | - |
| article pdf uploaded. | 4 December 2017 14:33 CET | Version of Record | https://www.mdpi.com/2073-4441/9/12/942/pdf |
