| article html file updated | 8 February 2020 18:14 CET | Update | https://www.mdpi.com/2305-6304/5/4/26 |
| article html file updated | 27 September 2019 16:52 CEST | Update | - |
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| article xml uploaded. | 18 October 2017 10:33 CEST | Update | https://www.mdpi.com/2305-6304/5/4/26/xml |
| article pdf uploaded. | 18 October 2017 10:33 CEST | Updated version of record | https://www.mdpi.com/2305-6304/5/4/26/pdf |
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| article pdf uploaded. | 16 October 2017 04:18 CEST | Updated version of record | https://www.mdpi.com/2305-6304/5/4/26/pdf-vor |
| article pdf uploaded. | 12 October 2017 11:55 CEST | Version of Record | https://www.mdpi.com/2305-6304/5/4/26/pdf-vor |