| article html file updated | 9 February 2020 11:42 CET | Update | https://www.mdpi.com/2304-8158/7/4/49 |
| article html file updated | 2 October 2019 01:58 CEST | Update | - |
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| article html file updated | 1 May 2018 05:25 CEST | Update | - |
| article html file updated | 29 March 2018 10:06 CEST | Original file | - |
| article xml uploaded. | 29 March 2018 09:32 CEST | Original file | https://www.mdpi.com/2304-8158/7/4/49/xml |
| article pdf uploaded. | 29 March 2018 09:32 CEST | Version of Record | https://www.mdpi.com/2304-8158/7/4/49/pdf |
