| article html file updated | 9 February 2020 03:05 CET | Update | https://www.mdpi.com/2220-9964/7/1/26 |
| article html file updated | 29 September 2019 22:11 CEST | Update | - |
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| article html file updated | 1 February 2018 10:49 CET | Update | - |
| article html file updated | 15 January 2018 09:55 CET | Original file | - |
| article xml uploaded. | 15 January 2018 09:54 CET | Original file | https://www.mdpi.com/2220-9964/7/1/26/xml |
| article pdf uploaded. | 15 January 2018 09:54 CET | Version of Record | https://www.mdpi.com/2220-9964/7/1/26/pdf |
