| article html file updated | 11 February 2020 22:33 CET | Update | https://www.mdpi.com/2311-5521/4/1/51 |
| article html file updated | 16 October 2019 16:27 CEST | Update | N/A |
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| article html file updated | 11 April 2019 21:34 CEST | Update | N/A |
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| article html file updated | 22 March 2019 05:47 CET | Original file | N/A |
| article pdf uploaded. | 22 March 2019 05:45 CET | Updated version of record | https://www.mdpi.com/2311-5521/4/1/51/pdf |
| article xml uploaded. | 22 March 2019 05:45 CET | Update | https://www.mdpi.com/2311-5521/4/1/51/xml |
| article xml file uploaded | 22 March 2019 05:45 CET | Update | N/A |
| article pdf uploaded. | 15 March 2019 13:18 CET | Version of Record | https://www.mdpi.com/2311-5521/4/1/51/pdf-vor |
| article xml file uploaded | 15 March 2019 13:18 CET | Original file | N/A |