| article html file updated | 7 February 2020 21:12 CET | Update | https://www.mdpi.com/2311-5629/3/1/2 |
| article html file updated | 15 August 2019 07:53 CEST | Update | N/A |
| article html file updated | 4 May 2019 15:55 CEST | Update | N/A |
| article html file updated | 11 January 2017 10:34 CET | Update | N/A |
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| article xml uploaded. | 11 January 2017 10:33 CET | Original file | https://www.mdpi.com/2311-5629/3/1/2/xml |
| article pdf uploaded. | 11 January 2017 10:33 CET | Version of Record | https://www.mdpi.com/2311-5629/3/1/2/pdf |
