| article html file updated | 7 February 2020 17:39 CET | Update | https://www.mdpi.com/2304-6732/3/4/58 |
| article html file updated | 22 September 2019 04:59 CEST | Update | - |
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| article html file updated | 28 December 2016 11:35 CET | Update | - |
| article html file updated | 8 November 2016 09:35 CET | Original file | - |
| article xml uploaded. | 8 November 2016 09:34 CET | Original file | https://www.mdpi.com/2304-6732/3/4/58/xml |
| article pdf uploaded. | 8 November 2016 09:34 CET | Version of Record | https://www.mdpi.com/2304-6732/3/4/58/pdf |
