| article html file updated | 9 February 2020 01:39 CET | Update | https://www.mdpi.com/1996-1073/11/1/77 |
| article html file updated | 29 September 2019 14:22 CEST | Update | - |
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| article html file updated | 1 February 2018 11:04 CET | Update | - |
| article html file updated | 1 January 2018 05:17 CET | Original file | - |
| article xml uploaded. | 1 January 2018 05:16 CET | Update | https://www.mdpi.com/1996-1073/11/1/77/xml |
| article pdf uploaded. | 1 January 2018 05:07 CET | Updated version of record | https://www.mdpi.com/1996-1073/11/1/77/pdf |
| article pdf uploaded. | 1 January 2018 05:06 CET | Updated version of record | - |
| article pdf uploaded. | 1 January 2018 05:06 CET | Updated version of record | - |
