| article html file updated | 9 February 2020 01:37 CET | Update | https://www.mdpi.com/2071-1050/10/1/87 |
| article html file updated | 29 September 2019 14:09 CEST | Update | - |
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| article html file updated | 31 December 2017 10:18 CET | Original file | - |
| article xml uploaded. | 31 December 2017 10:17 CET | Update | https://www.mdpi.com/2071-1050/10/1/87/xml |
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| article pdf uploaded. | 31 December 2017 10:17 CET | Version of Record | https://www.mdpi.com/2071-1050/10/1/87/pdf |
