| article html file updated | 11 February 2020 05:35 CET | Update | https://www.mdpi.com/1996-1073/12/1/77 |
| article html file updated | 12 October 2019 14:09 CEST | Update | N/A |
| article html file updated | 27 April 2019 13:52 CEST | Update | N/A |
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| article html file updated | 28 December 2018 04:59 CET | Original file | N/A |
| article pdf uploaded. | 28 December 2018 04:57 CET | Version of Record | https://www.mdpi.com/1996-1073/12/1/77/pdf |
| article xml uploaded. | 28 December 2018 04:57 CET | Update | https://www.mdpi.com/1996-1073/12/1/77/xml |
| article xml file uploaded | 28 December 2018 04:57 CET | Original file | N/A |