| article html file updated | 8 February 2020 22:31 CET | Update | https://www.mdpi.com/2075-1702/5/4/29 |
| article html file updated | 28 September 2019 19:59 CEST | Update | N/A |
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| article html file updated | 18 April 2019 09:39 CEST | Update | N/A |
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| article html file updated | 29 November 2017 07:47 CET | Original file | N/A |
| article xml uploaded. | 29 November 2017 07:46 CET | Update | https://www.mdpi.com/2075-1702/5/4/29/xml |
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| article pdf uploaded. | 29 November 2017 07:46 CET | Version of Record | https://www.mdpi.com/2075-1702/5/4/29/pdf |
