| article html file updated | 8 February 2020 05:52 CET | Update | https://www.mdpi.com/2304-8158/6/5/37 |
| article html file updated | 24 September 2019 20:01 CEST | Update | N/A |
| article html file updated | 3 May 2019 22:01 CEST | Update | N/A |
| article html file updated | 31 May 2017 06:49 CEST | Update | N/A |
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| article html file updated | 15 May 2017 10:43 CEST | Original file | N/A |
| article xml uploaded. | 15 May 2017 10:41 CEST | Original file | https://www.mdpi.com/2304-8158/6/5/37/xml |
| article pdf uploaded. | 15 May 2017 10:41 CEST | Version of Record | https://www.mdpi.com/2304-8158/6/5/37/pdf |
