| article html file updated | 9 February 2020 01:37 CET | Update | https://www.mdpi.com/2075-4701/8/1/23 |
| article html file updated | 29 September 2019 14:10 CEST | Update | - |
| article html file updated | 2 May 2019 05:13 CEST | Update | - |
| article html file updated | 18 April 2019 03:15 CEST | Update | - |
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| article html file updated | 9 February 2018 10:56 CET | Update | - |
| article html file updated | 1 February 2018 10:08 CET | Update | - |
| article html file updated | 2 January 2018 20:53 CET | Original file | - |
| article xml uploaded. | 2 January 2018 13:27 CET | Original file | https://www.mdpi.com/2075-4701/8/1/23/xml |
| article pdf uploaded. | 2 January 2018 13:27 CET | Updated version of record | https://www.mdpi.com/2075-4701/8/1/23/pdf |
| article pdf uploaded. | 31 December 2017 11:24 CET | Version of Record | https://www.mdpi.com/2075-4701/8/1/23/pdf-vor |
