| article html file updated | 10 February 2020 13:09 CET | Update | https://www.mdpi.com/2199-8531/4/4/46 |
| article html file updated | 8 October 2019 09:57 CEST | Update | N/A |
| article html file updated | 29 April 2019 01:26 CEST | Update | N/A |
| article html file updated | 14 April 2019 20:46 CEST | Update | N/A |
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| article html file updated | 27 September 2018 16:45 CEST | Original file | N/A |
| article xml uploaded. | 27 September 2018 16:44 CEST | Original file | https://www.mdpi.com/2199-8531/4/4/46/xml |
| article pdf uploaded. | 27 September 2018 16:44 CEST | Version of Record | https://www.mdpi.com/2199-8531/4/4/46/pdf |
