| article html file updated | 7 February 2020 18:58 CET | Update | https://www.mdpi.com/2218-0532/84/4/752 |
| article html file updated | 22 September 2019 08:20 CEST | Update | - |
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| article html file updated | 29 June 2017 13:18 CEST | Update | - |
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| article html file updated | 30 December 2016 02:06 CET | Original file | - |
| article xml uploaded. | 2 December 2016 09:39 CET | Original file | https://www.mdpi.com/2218-0532/84/4/752/xml |
| article pdf uploaded. | 2 December 2016 09:39 CET | Version of Record | https://www.mdpi.com/2218-0532/84/4/752/pdf |
