| article html file updated | 7 February 2020 11:03 CET | Update | https://www.mdpi.com/2311-5521/1/3/22 |
| article html file updated | 5 May 2019 11:19 CEST | Update | N/A |
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| article html file updated | 30 June 2016 16:09 CEST | Original file | N/A |
| article xml uploaded. | 30 June 2016 16:07 CEST | Update | https://www.mdpi.com/2311-5521/1/3/22/xml |
| article pdf uploaded. | 30 June 2016 16:07 CEST | Version of Record | https://www.mdpi.com/2311-5521/1/3/22/pdf |