| article html file updated | 7 February 2020 18:54 CET | Update | https://www.mdpi.com/2071-1050/8/12/1252 |
| article html file updated | 22 September 2019 08:07 CEST | Update | - |
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| article html file updated | 28 December 2016 08:12 CET | Update | - |
| article html file updated | 2 December 2016 00:27 CET | Original file | - |
| article xml uploaded. | 1 December 2016 08:40 CET | Original file | https://www.mdpi.com/2071-1050/8/12/1252/xml |
| article pdf uploaded. | 1 December 2016 08:40 CET | Version of Record | https://www.mdpi.com/2071-1050/8/12/1252/pdf |
