| article html file updated | 8 February 2020 09:21 CET | Update | https://www.mdpi.com/2304-8158/6/7/46 |
| article html file updated | 25 September 2019 14:03 CEST | Update | - |
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| article html file updated | 28 July 2017 11:34 CEST | Update | - |
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| article xml uploaded. | 4 July 2017 11:29 CEST | Update | https://www.mdpi.com/2304-8158/6/7/46/xml |
| article pdf uploaded. | 4 July 2017 11:29 CEST | Updated version of record | https://www.mdpi.com/2304-8158/6/7/46/pdf |
| article html file updated | 28 June 2017 11:09 CEST | Original file | - |
| article pdf uploaded. | 28 June 2017 08:37 CEST | Updated version of record | https://www.mdpi.com/2304-8158/6/7/46/pdf-vor |
| article pdf uploaded. | 27 June 2017 11:27 CEST | Version of Record | https://www.mdpi.com/2304-8158/6/7/46/pdf-vor |