| article html file updated | 7 February 2020 02:34 CET | Update | https://www.mdpi.com/2310-2861/2/1/1 |
| article html file updated | 6 May 2019 04:16 CEST | Update | N/A |
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| article pdf uploaded. | 23 December 2015 13:17 CET | Updated version of record | https://www.mdpi.com/2310-2861/2/1/1/pdf |
| article xml uploaded. | 23 December 2015 13:17 CET | Update | https://www.mdpi.com/2310-2861/2/1/1/xml |
| article pdf uploaded. | 23 December 2015 12:59 CET | Updated version of record | N/A |
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| article pdf uploaded. | 22 December 2015 18:33 CET | Updated version of record | N/A |
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| article xml uploaded. | 22 December 2015 17:01 CET | Original file | N/A |
| article pdf uploaded. | 22 December 2015 16:27 CET | Version of Record | N/A |
