| article html file updated | 9 February 2020 03:29 CET | Update | https://www.mdpi.com/2076-393X/6/1/7 |
| article html file updated | 30 September 2019 00:35 CEST | Update | - |
| article html file updated | 2 May 2019 01:24 CEST | Update | - |
| article html file updated | 17 April 2019 23:43 CEST | Update | - |
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| article html file updated | 27 March 2018 15:08 CEST | Update | - |
| article html file updated | 18 January 2018 09:24 CET | Original file | - |
| article xml uploaded. | 18 January 2018 09:23 CET | Original file | https://www.mdpi.com/2076-393X/6/1/7/xml |
| article pdf uploaded. | 18 January 2018 09:23 CET | Version of Record | https://www.mdpi.com/2076-393X/6/1/7/pdf |
