| article html file updated | 9 February 2020 13:43 CET | Update | https://www.mdpi.com/2220-9964/7/4/147 |
| article html file updated | 2 October 2019 14:23 CEST | Update | - |
| article html file updated | 1 May 2019 03:41 CEST | Update | - |
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| article html file updated | 1 May 2018 04:00 CEST | Update | - |
| article html file updated | 13 April 2018 16:29 CEST | Original file | - |
| article xml uploaded. | 13 April 2018 16:28 CEST | Original file | https://www.mdpi.com/2220-9964/7/4/147/xml |
| article pdf uploaded. | 13 April 2018 16:28 CEST | Version of Record | https://www.mdpi.com/2220-9964/7/4/147/pdf |
