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| article html file updated | 26 December 2018 12:11 CET | Update | N/A |
| article pdf uploaded. | 26 December 2018 04:03 CET | Updated version of record | https://www.mdpi.com/2218-1997/5/1/4/pdf |
| article xml uploaded. | 26 December 2018 04:03 CET | Update | https://www.mdpi.com/2218-1997/5/1/4/xml |
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| article html file updated | 25 December 2018 12:17 CET | Update | N/A |
| article pdf uploaded. | 25 December 2018 12:16 CET | Updated version of record | https://www.mdpi.com/2218-1997/5/1/4/pdf-vor |
| article xml uploaded. | 25 December 2018 12:16 CET | Update | N/A |
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| article html file updated | 22 December 2018 11:26 CET | Original file | N/A |
| article pdf uploaded. | 22 December 2018 11:24 CET | Version of Record | https://www.mdpi.com/2218-1997/5/1/4/pdf-vor |
| article xml uploaded. | 22 December 2018 11:24 CET | Update | N/A |
| article xml file uploaded | 22 December 2018 11:24 CET | Original file | N/A |
