| article html file updated | 7 February 2020 10:30 CET | Update | https://www.mdpi.com/2311-5629/2/2/16 |
| article html file updated | 21 September 2019 19:27 CEST | Update | N/A |
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| article html file updated | 21 June 2016 13:49 CEST | Original file | N/A |
| article xml uploaded. | 21 June 2016 13:48 CEST | Original file | https://www.mdpi.com/2311-5629/2/2/16/xml |
| article pdf uploaded. | 21 June 2016 13:48 CEST | Version of Record | https://www.mdpi.com/2311-5629/2/2/16/pdf |
