| article html file updated | 8 February 2020 02:18 CET | Update | https://www.mdpi.com/1424-8220/17/4/684 |
| article html file updated | 24 September 2019 00:30 CEST | Update | N/A |
| article html file updated | 4 May 2019 04:56 CEST | Update | N/A |
| article html file updated | 29 April 2017 13:31 CEST | Update | N/A |
| article html file updated | 27 March 2017 05:49 CEST | Update | N/A |
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| article html file updated | 26 March 2017 22:37 CEST | Update | N/A |
| article html file updated | 26 March 2017 11:55 CEST | Original file | N/A |
| article xml uploaded. | 26 March 2017 11:54 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/684/xml |
| article pdf uploaded. | 26 March 2017 11:54 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/684/pdf |
