| article html file updated | 9 February 2020 07:17 CET | Update | https://www.mdpi.com/2075-4442/6/1/21 |
| article html file updated | 30 September 2019 23:08 CEST | Update | - |
| article html file updated | 1 May 2019 17:03 CEST | Update | - |
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| article html file updated | 29 March 2019 00:42 CET | Update | - |
| article html file updated | 27 March 2018 15:21 CEST | Update | - |
| article html file updated | 24 February 2018 12:15 CET | Original file | - |
| article xml uploaded. | 24 February 2018 12:13 CET | Update | https://www.mdpi.com/2075-4442/6/1/21/xml |
| article xml uploaded. | 24 February 2018 12:13 CET | Update | - |
| article xml uploaded. | 24 February 2018 12:13 CET | Original file | - |
| article pdf uploaded. | 24 February 2018 12:13 CET | Updated version of record | https://www.mdpi.com/2075-4442/6/1/21/pdf |
| article pdf uploaded. | 22 February 2018 16:10 CET | Version of Record | https://www.mdpi.com/2075-4442/6/1/21/pdf-vor |
