| article html file updated | 7 February 2020 07:03 CET | Update | https://www.mdpi.com/2304-8158/5/2/27 |
| article html file updated | 5 May 2019 19:06 CEST | Update | - |
| article html file updated | 27 March 2019 01:27 CET | Update | - |
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| article html file updated | 5 July 2016 06:35 CEST | Update | - |
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| article xml uploaded. | 9 April 2016 05:51 CEST | Original file | https://www.mdpi.com/2304-8158/5/2/27/xml |
| article pdf uploaded. | 9 April 2016 05:51 CEST | Version of Record | https://www.mdpi.com/2304-8158/5/2/27/pdf |
