| article html file updated | 7 February 2020 19:40 CET | Update | https://www.mdpi.com/2077-1444/7/12/148 |
| article html file updated | 22 September 2019 11:51 CEST | Update | - |
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| article html file updated | 28 December 2016 10:43 CET | Update | - |
| article html file updated | 23 December 2016 21:21 CET | Original file | - |
| article xml uploaded. | 23 December 2016 21:20 CET | Original file | https://www.mdpi.com/2077-1444/7/12/148/xml |
| article pdf uploaded. | 23 December 2016 21:20 CET | Version of Record | https://www.mdpi.com/2077-1444/7/12/148/pdf |
