| article html file updated | 8 February 2020 05:50 CET | Update | https://www.mdpi.com/2076-0787/6/2/30 |
| article html file updated | 3 May 2019 22:06 CEST | Update | N/A |
| article html file updated | 20 December 2017 10:49 CET | Update | N/A |
| article xml uploaded. | 20 December 2017 10:47 CET | Update | https://www.mdpi.com/2076-0787/6/2/30/xml |
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| article pdf uploaded. | 20 December 2017 10:47 CET | Updated version of record | https://www.mdpi.com/2076-0787/6/2/30/pdf |
| article html file updated | 23 May 2017 04:13 CEST | Update | N/A |
| article html file updated | 15 May 2017 11:51 CEST | Original file | N/A |
| article pdf uploaded. | 15 May 2017 11:50 CEST | Updated version of record | https://www.mdpi.com/2076-0787/6/2/30/pdf-vor |
| article pdf uploaded. | 14 May 2017 08:34 CEST | Version of Record | https://www.mdpi.com/2076-0787/6/2/30/pdf-vor |
