| article html file updated | 9 February 2020 01:49 CET | Update | https://www.mdpi.com/1996-1073/11/1/96 |
| article html file updated | 29 September 2019 15:16 CEST | Update | - |
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| article html file updated | 1 February 2018 11:38 CET | Update | - |
| article pdf uploaded. | 23 January 2018 06:10 CET | Updated version of record | https://www.mdpi.com/1996-1073/11/1/96/pdf |
| article html file updated | 3 January 2018 03:55 CET | Original file | - |
| article xml uploaded. | 3 January 2018 03:53 CET | Original file | https://www.mdpi.com/1996-1073/11/1/96/xml |
| article pdf uploaded. | 3 January 2018 03:53 CET | Updated version of record | - |
