| article html file updated | 11 February 2020 02:43 CET | Update | https://www.mdpi.com/2227-7390/6/12/321 |
| article html file updated | 11 October 2019 20:20 CEST | Update | N/A |
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| article html file updated | 25 December 2018 05:06 CET | Update | N/A |
| article html file updated | 14 December 2018 11:19 CET | Update | N/A |
| article xml uploaded. | 14 December 2018 11:17 CET | Update | https://www.mdpi.com/2227-7390/6/12/321/xml |
| article pdf uploaded. | 14 December 2018 11:17 CET | Updated version of record | https://www.mdpi.com/2227-7390/6/12/321/pdf |
| article html file updated | 12 December 2018 10:11 CET | Original file | N/A |
| article pdf uploaded. | 12 December 2018 10:10 CET | Version of Record | https://www.mdpi.com/2227-7390/6/12/321/pdf-vor |
| article xml uploaded. | 12 December 2018 10:10 CET | Update | N/A |
| article xml file uploaded | 12 December 2018 10:10 CET | Original file | N/A |