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| article html file updated | 20 July 2022 06:10 CEST | Update | - |
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| article pdf uploaded. | 27 August 2019 11:51 CEST | Updated version of record | https://www.mdpi.com/2224-2708/8/3/40/pdf |
| article xml uploaded. | 27 August 2019 11:51 CEST | Update | https://www.mdpi.com/2224-2708/8/3/40/xml |
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| article pdf uploaded. | 29 July 2019 16:05 CEST | Version of Record | https://www.mdpi.com/2224-2708/8/3/40/pdf-vor |
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