| article html file updated | 11 February 2020 14:38 CET | Update | https://www.mdpi.com/2073-4395/9/2/72 |
| article html file updated | 14 October 2019 16:31 CEST | Update | - |
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| article html file updated | 20 February 2019 04:47 CET | Update | - |
| article xml uploaded. | 20 February 2019 04:46 CET | Update | https://www.mdpi.com/2073-4395/9/2/72/xml |
| article pdf uploaded. | 20 February 2019 04:46 CET | Updated version of record | https://www.mdpi.com/2073-4395/9/2/72/pdf |
| article xml file uploaded | 20 February 2019 04:46 CET | Update | - |
| article html file updated | 20 February 2019 04:40 CET | Original file | - |
| article pdf uploaded. | 20 February 2019 04:38 CET | Updated version of record | https://www.mdpi.com/2073-4395/9/2/72/pdf-vor |
| article xml uploaded. | 20 February 2019 04:38 CET | Update | - |
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| article xml file uploaded | 8 February 2019 15:49 CET | Original file | - |
| article pdf uploaded. | 8 February 2019 15:49 CET | Version of Record | https://www.mdpi.com/2073-4395/9/2/72/pdf-vor |
