| article html file updated | 7 February 2020 23:15 CET | Update | https://www.mdpi.com/2078-2489/8/1/22 |
| article html file updated | 23 September 2019 07:09 CEST | Update | - |
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| article html file updated | 30 March 2017 03:26 CEST | Update | - |
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| article xml uploaded. | 15 February 2017 02:06 CET | Original file | https://www.mdpi.com/2078-2489/8/1/22/xml |
| article pdf uploaded. | 15 February 2017 02:06 CET | Updated version of record | https://www.mdpi.com/2078-2489/8/1/22/pdf |
| article pdf uploaded. | 13 February 2017 10:28 CET | Version of Record | https://www.mdpi.com/2078-2489/8/1/22/pdf-vor |
