| article html file updated | 8 February 2020 09:39 CET | Update | https://www.mdpi.com/2304-8158/6/7/48 |
| article html file updated | 25 September 2019 15:44 CEST | Update | - |
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| article html file updated | 28 July 2017 11:34 CEST | Update | - |
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| article html file updated | 30 June 2017 08:47 CEST | Original file | - |
| article xml uploaded. | 30 June 2017 08:46 CEST | Update | https://www.mdpi.com/2304-8158/6/7/48/xml |
| article pdf uploaded. | 30 June 2017 08:46 CEST | Version of Record | https://www.mdpi.com/2304-8158/6/7/48/pdf |
