| article html file updated | 8 February 2020 05:10 CET | Update | https://www.mdpi.com/2072-6643/9/5/457 |
| article html file updated | 24 September 2019 16:16 CEST | Update | - |
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| article html file updated | 1 June 2017 07:37 CEST | Update | - |
| article html file updated | 23 May 2017 03:46 CEST | Update | - |
| article html file updated | 5 May 2017 14:01 CEST | Original file | - |
| article xml uploaded. | 5 May 2017 14:00 CEST | Original file | https://www.mdpi.com/2072-6643/9/5/457/xml |
| article pdf uploaded. | 5 May 2017 14:00 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/5/457/pdf |
