| article html file updated | 9 February 2020 13:04 CET | Update | https://www.mdpi.com/2075-4701/8/4/252 |
| article html file updated | 2 October 2019 10:13 CEST | Update | - |
| article html file updated | 1 May 2019 04:59 CEST | Update | - |
| article html file updated | 17 April 2019 05:13 CEST | Update | - |
| article html file updated | 29 March 2019 13:56 CET | Update | - |
| article html file updated | 1 May 2018 07:51 CEST | Update | - |
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| article html file updated | 9 April 2018 12:15 CEST | Original file | - |
| article xml uploaded. | 9 April 2018 12:13 CEST | Original file | https://www.mdpi.com/2075-4701/8/4/252/xml |
| article pdf uploaded. | 9 April 2018 12:13 CEST | Version of Record | https://www.mdpi.com/2075-4701/8/4/252/pdf |
