| article html file updated | 7 February 2020 10:38 CET | Update | https://www.mdpi.com/2077-0383/5/7/61 |
| article html file updated | 21 September 2019 19:37 CEST | Update | - |
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| article html file updated | 27 July 2016 10:48 CEST | Update | - |
| article html file updated | 23 June 2016 09:11 CEST | Original file | - |
| article xml uploaded. | 23 June 2016 09:10 CEST | Original file | https://www.mdpi.com/2077-0383/5/7/61/xml |
| article pdf uploaded. | 23 June 2016 09:10 CEST | Version of Record | https://www.mdpi.com/2077-0383/5/7/61/pdf |
