| article html file updated | 9 February 2020 08:15 CET | Update | https://www.mdpi.com/2076-3921/7/3/36 |
| article html file updated | 1 October 2019 04:36 CEST | Update | - |
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| article html file updated | 26 March 2018 13:10 CEST | Update | - |
| article html file updated | 1 March 2018 10:40 CET | Original file | - |
| article xml uploaded. | 1 March 2018 10:38 CET | Original file | https://www.mdpi.com/2076-3921/7/3/36/xml |
| article pdf uploaded. | 1 March 2018 10:38 CET | Version of Record | https://www.mdpi.com/2076-3921/7/3/36/pdf |
