| article html file updated | 9 February 2020 03:18 CET | Update | https://www.mdpi.com/2075-4701/8/1/60 |
| article html file updated | 29 September 2019 23:27 CEST | Update | - |
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| article html file updated | 9 February 2018 11:05 CET | Update | - |
| article html file updated | 1 February 2018 12:15 CET | Update | - |
| article html file updated | 19 January 2018 11:22 CET | Update | - |
| article xml uploaded. | 19 January 2018 11:20 CET | Update | https://www.mdpi.com/2075-4701/8/1/60/xml |
| article xml uploaded. | 19 January 2018 11:20 CET | Update | - |
| article pdf uploaded. | 19 January 2018 11:20 CET | Updated version of record | https://www.mdpi.com/2075-4701/8/1/60/pdf |
| article html file updated | 16 January 2018 17:04 CET | Original file | - |
| article xml uploaded. | 16 January 2018 17:02 CET | Update | - |
| article xml uploaded. | 16 January 2018 17:02 CET | Original file | - |
| article pdf uploaded. | 16 January 2018 17:02 CET | Version of Record | https://www.mdpi.com/2075-4701/8/1/60/pdf-vor |
