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| article html file updated | 16 July 2022 05:47 CEST | Update | N/A |
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| article xml uploaded. | 17 August 2017 02:49 CEST | Update | https://www.mdpi.com/2224-2708/6/3/15/xml |
| article pdf uploaded. | 17 August 2017 02:49 CEST | Updated version of record | https://www.mdpi.com/2224-2708/6/3/15/pdf |
| article html file updated | 10 August 2017 11:57 CEST | Original file | N/A |
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