| article html file updated | 9 February 2020 16:21 CET | Update | https://www.mdpi.com/2227-7102/8/2/65 |
| article html file updated | 3 October 2019 05:59 CEST | Update | - |
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| article html file updated | 27 June 2018 09:16 CEST | Update | - |
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| article xml uploaded. | 8 May 2018 17:44 CEST | Update | https://www.mdpi.com/2227-7102/8/2/65/xml |
| article pdf uploaded. | 8 May 2018 17:44 CEST | Updated version of record | https://www.mdpi.com/2227-7102/8/2/65/pdf |
| article html file updated | 8 May 2018 17:35 CEST | Update | - |
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| article html file updated | 4 May 2018 10:37 CEST | Original file | - |
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