| article html file updated | 9 February 2020 07:23 CET | Update | https://www.mdpi.com/2076-3271/6/1/18 |
| article html file updated | 30 September 2019 23:41 CEST | Update | - |
| article html file updated | 1 May 2019 16:51 CEST | Update | - |
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| article html file updated | 29 March 2019 00:54 CET | Update | - |
| article html file updated | 28 March 2018 10:22 CEST | Update | - |
| article html file updated | 23 February 2018 13:54 CET | Original file | - |
| article xml uploaded. | 23 February 2018 13:53 CET | Original file | https://www.mdpi.com/2076-3271/6/1/18/xml |
| article pdf uploaded. | 23 February 2018 13:53 CET | Version of Record | https://www.mdpi.com/2076-3271/6/1/18/pdf |
