| article html file updated | 9 February 2020 10:20 CET | Update | https://www.mdpi.com/2305-6304/6/1/18 |
| article html file updated | 1 October 2019 18:07 CEST | Update | - |
| article html file updated | 1 May 2019 10:43 CEST | Update | - |
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| article html file updated | 28 March 2018 03:44 CEST | Update | - |
| article html file updated | 19 March 2018 07:59 CET | Original file | - |
| article xml uploaded. | 19 March 2018 07:58 CET | Original file | https://www.mdpi.com/2305-6304/6/1/18/xml |
| article pdf uploaded. | 19 March 2018 07:58 CET | Version of Record | https://www.mdpi.com/2305-6304/6/1/18/pdf |
