| article html file updated | 9 February 2020 01:56 CET | Update | https://www.mdpi.com/1996-1073/11/1/115 |
| article html file updated | 29 September 2019 15:56 CEST | Update | N/A |
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| article html file updated | 3 January 2018 17:33 CET | Original file | N/A |
| article xml uploaded. | 3 January 2018 17:31 CET | Update | https://www.mdpi.com/1996-1073/11/1/115/xml |
| article pdf uploaded. | 3 January 2018 17:31 CET | Version of Record | https://www.mdpi.com/1996-1073/11/1/115/pdf |