| article html file updated | 7 February 2020 13:30 CET | Update | https://www.mdpi.com/1424-8247/9/3/49 |
| article html file updated | 5 May 2019 06:49 CEST | Update | N/A |
| article html file updated | 27 March 2019 13:58 CET | Update | N/A |
| article html file updated | 9 November 2017 12:34 CET | Update | N/A |
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| article html file updated | 28 September 2016 11:58 CEST | Update | N/A |
| article html file updated | 18 August 2016 09:19 CEST | Original file | N/A |
| article xml uploaded. | 18 August 2016 09:17 CEST | Update | https://www.mdpi.com/1424-8247/9/3/49/xml |
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| article pdf uploaded. | 18 August 2016 09:17 CEST | Version of Record | https://www.mdpi.com/1424-8247/9/3/49/pdf |
