| article html file updated | 8 February 2020 11:09 CET | Update | https://www.mdpi.com/2311-5521/2/3/39 |
| article html file updated | 25 September 2019 23:32 CEST | Update | N/A |
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| article html file updated | 27 March 2019 16:03 CET | Update | N/A |
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| article html file updated | 16 July 2017 04:54 CEST | Original file | N/A |
| article xml uploaded. | 16 July 2017 04:53 CEST | Original file | https://www.mdpi.com/2311-5521/2/3/39/xml |
| article pdf uploaded. | 16 July 2017 04:53 CEST | Version of Record | https://www.mdpi.com/2311-5521/2/3/39/pdf |
