| article html file updated | 11 February 2020 09:29 CET | Update | https://www.mdpi.com/2073-4409/8/1/60 |
| article html file updated | 27 April 2019 05:28 CEST | Update | - |
| article html file updated | 13 April 2019 01:33 CEST | Update | - |
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| article html file updated | 30 January 2019 07:15 CET | Update | - |
| article html file updated | 16 January 2019 14:06 CET | Original file | - |
| article xml uploaded. | 16 January 2019 14:04 CET | Original file | https://www.mdpi.com/2073-4409/8/1/60/xml |
| article pdf uploaded. | 16 January 2019 14:04 CET | Version of Record | https://www.mdpi.com/2073-4409/8/1/60/pdf |
