| article html file updated | 9 February 2020 01:24 CET | Update | https://www.mdpi.com/1420-3049/23/1/60 |
| article html file updated | 29 September 2019 12:54 CEST | Update | - |
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| article html file updated | 28 December 2017 11:47 CET | Original file | - |
| article xml uploaded. | 28 December 2017 11:46 CET | Original file | https://www.mdpi.com/1420-3049/23/1/60/xml |
| article pdf uploaded. | 28 December 2017 11:46 CET | Version of Record | https://www.mdpi.com/1420-3049/23/1/60/pdf |
