| article html file updated | 8 February 2020 03:49 CET | Update | https://www.mdpi.com/2226-4310/4/2/23 |
| article html file updated | 24 September 2019 09:06 CEST | Update | N/A |
| article html file updated | 4 May 2019 01:47 CEST | Update | N/A |
| article html file updated | 28 June 2017 12:18 CEST | Update | N/A |
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| article xml uploaded. | 19 April 2017 08:46 CEST | Update | https://www.mdpi.com/2226-4310/4/2/23/xml |
| article html file updated | 18 April 2017 11:51 CEST | Original file | N/A |
| article pdf uploaded. | 18 April 2017 11:49 CEST | Version of Record | https://www.mdpi.com/2226-4310/4/2/23/pdf |
